Image copyright New York Times Image caption The New York Times says this evidence was gathered at the scene of the attack 
 
 Police investigating the Manchester Arena bomb attack have stopped sharing information with the US after leaks to the media. 
 
 UK officials were outraged when photos appearing to show debris from the attack appeared in the New York Times. 
 
 It came after the name of bomber Salman Abedi was leaked to US media just hours after the attack, which left 22 dead. 
 
 Theresa May said she would tell Donald Trump at a Nato meeting that shared intelligence "must remain secure". 
 
 The US's acting ambassador to the UK "unequivocally condemned" the leaks in a BBC radio interview. 
 
 "These leaks were reprehensible, deeply distressing," Lewis Lukens said. 
 
 "We have had communications at the highest level of our government ... we are determined to identify these leaks and to stop them." 
 
 Meanwhile, the Queen has been to the Royal Manchester Children's Hospital visiting some of the injured as well as members of the emergency services. 
 
 While there she paid tribute to Manchester and the "extraordinary" way the city had responded to Monday's attack at an Ariana Grande concert, in which 116 people were also injured. 
 
 Families' distress 
 
 In total eight men are now in custody following the bombing carried out by Manchester-born Abedi, a 22-year-old from a family of Libyan origin. 
 
 The arrests have been "significant" while searches of premises have also yielded items "important to the investigation", Greater Manchester Police said. 
 
 It has also emerged two people who had known Abedi at college made separate calls to a hotline to warn the police about his extremist views. 
 
 A Whitehall source said Abedi was one of a "pool" of former subjects of interest whose risk remained "subject to review" by the security service and its partners. 
 
 In other developments: 
 
 Greater Manchester Police hope to resume normal intelligence relationships - a two-way flow of information - soon but is currently "furious", the BBC understands. 
 
 Its chief constable Ian Hopkins said the recent leak had caused "much distress for families that are already suffering terribly with their loss.". 
 
 The force - which is leading the investigation on the ground - gives its information to National Counter-Terrorism, which then shares it across government and - because of the Five Eyes intelligence sharing agreement - with the US, Australia, Canada and New Zealand. 
 
 Media playback is unsupported on your device Media caption Manchester attack: Queen visits Royal Manchester Children's Hospital 
 
 All other US-UK intelligence is still being shared, while five terrorist plots have been disrupted in the UK since the 22 March Westminster attack, the BBC has learned. 
 
 Home Secretary Amber Rudd has said she is "confident" the leaks will now end, after having voiced her irritation following the leak of the attacker's name. 
 
 However, the pictures of debris - which appear to show bloodstained fragments from the bomb and the backpack used to conceal it - were subsequently leaked to the New York Times, prompting an angry response from within Whitehall and from UK police chiefs. 
 
 BBC security correspondent Gordon Corera says UK officials believe that US law enforcement rather than the White House is the likely culprit for the leaks. 
 
 Analysis 
 
 By Dominic Casciani, BBC home affairs correspondent 
 
 The police decision to stop sharing information specifically about the Manchester attack with their security counterparts in the US is a hugely significant move and shows how angry British authorities are. 
 
 The information from the crime scene wasn't shared on a whim: the British and Americans have a lot of shared world-leading expertise in improvised explosive devices and scientists would be discussing whether the Manchester device tells them something new that could, ultimately, track down a bomb-maker. 
 
 Other sharing will continue. The UK and US share a vast amount of information about terror and espionage threats - it is a tight-knit network that also encompasses Canada, Australia and New Zealand. 
 
 That system is based on trust and the "control principle": if a piece of intelligence is shared, the receiving nation has no right to further disseminate it without permission. 
 
 The UK's National Police Chiefs' Council described the "unauthorised disclosure" as a breach of trust which had potentially undermined a "major counter-terrorism investigation". 
 
 Counter-terrorism detectives have spoken in the past about how a delay of about 36 hours before the public know who is being investigated can allow known associates of the suspect to be arrested without being tipped off. 
 
 Lord Blair, who was the head of the Metropolitan Police at the time of the bombings in London on 7 July 2005, said a similar leak had happened then. 
 
 "It's a different world in which the US operate in terms of how they publish things and this is a very grievous breach but I'm afraid it's the same as before," he said. 
 
 Image caption Abedi's father, Ramadan, was held in Tripoli 
 
 What's happening with the investigation? 
 
 Eight men have been arrested in the UK since Monday night, including Abedi's older brother Ismail, 23. 
 
 Abedi's younger brother Hashem, 20, was held by special forces linked to the interior ministry in the Libyan capital Tripoli, as was their father. 
 
 Speaking on Wednesday, Greater Manchester Chief Constable Ian Hopkins said: "It's very clear that this is a network that we are investigating." 
 
 As part of their investigation, raids involving controlled explosions have been carried out at a block of flats near Manchester Piccadilly station in the city centre on Wednesday and at an address in the Moss Side area of Manchester in the early hours of Thursday. 
 
 Anyone with information can call the anti-terror hotline on 0800 789321. 
 
 Who are the victims? 
 
 Image caption From left: Courtney Boyle, Elaine McIver and Eilidh MacLeod 
 
 Abedi detonated his "nuts-and-bolts" bomb at the end of an Ariana Grande gig as children, teenagers and others were making their way out of Manchester Arena. 
 
 Others, including parents, were waiting in the foyer to pick up family and friends when the bomb went off. 
 
 The youngest so far known to have died is eight-year-old Saffie Roussos. Off-duty Cheshire police officer Elaine McIver was also among the dead. 
 
 The latest victims to be named are Wendy Fawell, 50, from Otley, west Yorkshire and Eilidh MacLeod, a 14-year-old from Barra in the Outer Hebrides, and 19-year-old Courtney Boyle. 
 
 Of the 116 injured, 75 remain in hospital. Of those 23 are in critical care, five of them children. 
 
 Who was the attacker? 
 
 Image caption Salman Abedi was described by a former classmate as short-tempered and gullible 
 
 Salman Abedi was a 22-year-old born in Manchester to Libyan parents, and a former University of Salford student. 
 
 He attended Burnage Academy for Boys in Manchester between 2009 and 2011, and The Manchester College until 2013. 
 
 A former classmate told the BBC that Abedi was a "very jokey lad" but also "very short tempered" and would get angry at "the littlest thing". 
 
 The man, who did not want to be identified, said Abedi had hung around "the wrong crowd and was very, very gullible". 
 
 Before leaving Burnage Academy, Abedi had become "more and more religious", the man added. 
 
 A Muslim community worker, who did not want to be identified, has told the BBC that two people who had known Abedi at college had made separate calls five years ago to a hotline to warn about his extremist views. 
 
 He said they had been worried that Abedi was "supporting terrorism" and he had expressed the view that "being a suicide bomber was ok". 
 
 Profile: Who was Salman Abedi? ||||| British police have stopped sharing evidence from the investigation into the terror network behind the Manchester bombing with the United States after a series of leaks left investigators and the government furious. 
 
 The ban is limited to the Manchester investigation only. British police believe the leaks are unprecedented in their scope, frequency and potential damage. 
 
 Downing Street was not behind the decision by Greater Manchester police to stop sharing information with US intelligence, a No 10 source said, stressing that it was important police were allowed to take independent decisions. 
 
 “This is an operational matter for police,” a No 10 spokesman said. The police and the Home Office refused to comment. The Guardian understands there is not a blanket ban on intelligence-sharing between the US and the UK. 
 
 Photographs of Manchester bomb parts published after leak Read more 
 
 Relations between the US and UK security services, normally extremely close, have been put under strain by the scale of the leaks from US officials to the American media. 
 
 After chairing a meeting of the emergency Cobra meeting Theresa May said: “I will make clear to President Trump that intelligence shared between our security agencies must remain secure.” She is due to meet the US president at a Nato summit in Brussels on Thursday. 
 
 Ahead of the summit, the prime minister said she would work with other leaders on the global effort to defeat terrorism and remove extremist material from the internet. 
 
 
 
 She said the domestic threat of terrorism is still at a critical level, meaning an attack may be imminent, and she urged the public to remain vigilant. 
 
 On Friday, the prime minister will attend a G7 summit in Taormina in Sicily, although her planned attendance is being cut short by a day because of the higher domestic terror threat level. 
 
 
 
 The prime minister said she will “lead a discussion on counter-terrorism and on how we will work together to prevent the plotting of terrorist attacks online and to stop the spread of hateful extremist ideology on social media”. 
 
 British officials were infuriated on Wednesday when the New York Times published forensic photographs of sophisticated bomb parts that UK authorities fear could complicate the expanding investigation, in which six further arrests have been made in the UK and two more in Libya. 
 
 It was the latest of a series of leaks to US journalists that appeared to come from inside the US intelligence community, passing on data that had been shared between the two countries as part of longstanding security cooperation. 
 
 A senior Whitehall source said: “These images from inside the American system are clearly distressing to victims, their families and other members of the public. Protests have been lodged at every relevant level between the British authorities and our US counterparts. They are in no doubt about our huge strength of feeling on this issue. It is unacceptable.” 
 
 Whitehall sources reported a sense of deflation among UK security staff at the amount of detail coming out of America. The UK had shared the material with US police and intelligence in the expectation it would remain secret. The amount released is hampering at least part of the investigation, they believe. 
 
 
 
 Manchester’s mayor, Andy Burnham, said the leaks were arrogant and disrespectful, and police chiefs also criticised the actions. 
 
 A national counter-terrorism policing spokesperson said: “We greatly value the important relationships we have with our trusted intelligence, law enforcement and security partners around the world. 
 
 “When that trust is breached it undermines these relationships, and undermines our investigations and the confidence of victims, witnesses and their families. This damage is even greater when it involves unauthorised disclosure of potential evidence in the middle of a major counter-terrorism investigation.” 
 
 The police and the domestic security agency, MI5, are facing questions over whether they ignored warnings about Salman Abedi and whether there were clues they failed to pick up on. 
 
 While not directly responding to the criticism, the agencies have stressed that they have a large number of potential suspects and, in spite of increased spending, do not have infinite resources to monitor everyone. Hard decisions have to be made about prioritising which suspects need to be put under physical and electronic surveillance, they have said. 
 
 The number of specialist personnel carrying out physical surveillance varies according to whether a suspect is being watched at home or in the outside world. 
 
 MI5 is reticent about releasing exact figures but it has a database of about 3,000 potential people of concern, of whom about 500 are regarded as potentially high risk. Only a small proportion of these can be put under 24-hour physical surveillance and often only for a limited number of days or weeks. 
 
 The ban on sharing information with the US on such a major inquiry is unprecedented, more so because the atrocity has potential implications for US efforts to prevent any similar attacks directed at American targets. 
 
 The ban is described as temporary, and British police are examining if they can put safeguards in place to stop any further leaks. 
 
 British police are angry that as their officers are in pursuit of a suspected terror network, with raids deemed so risky they are being carried out by elite armed officers, sensitive information is being regularly leaked by the US. 
 
 May will raise her concerns with the US president at the Nato summit, where she will push for the military alliance to join the coalition against Islamic State. 
 
 The images published by the New York Times revealed that the device used by Salman Abedi, which killed 22 people, had been made with “forethought and care”, raising questions for investigators about how it had been constructed and by whom. 
 
 Abedi had carried a metal box containing “well packed” explosives, metal nuts and screws in a box probably inside a Karrimor rucksack, the leaked details showed. The device was powerful enough for shrapnel to penetrate metal doors and to scar brick walls. Abedi detonated the bomb with his left hand. 
 
 It showed the force of the explosion was such that his torso was ripped from the rest of his body and propelled across the foyer and that most of those killed were in a circle around the bomber. 
 
 The kind of information that has been leaked is routinely shared with police counterparts in the US. The information goes into a shared computer system and is then distributed among different specialists in the US, ranging from bomb experts to those dealing in counter-terrorism. 
 
 The UK and US are among the closest intelligence partners in the world, with the UK’s surveillance agency, GCHQ, sharing information with the NSA, MI6 with the CIA, and MI5 with the FBI. But the lines are not rigid and information is often shared more widely. 
 
 On Wednesday Amber Rudd, the British home secretary, had rebuked the US security services for leaking the bomber’s name to American media before it had been made public in Britain, but her warnings appear to have had no impact. 
 
 “I have been very clear with our friends that that should not happen again,” Rudd said. 
 
 Nato’s secretary general, Jens Stoltenberg, was asked about the leaks by reporters in Brussels before Thursday’s meeting of Nato leaders. 
 
 He said: “Sharing intelligence is of great importance. Sharing intelligence is based on trust and we have seen in Nato over many, many years that we have been able to share intelligence in a good way and that has been of great importance to the alliance and for all allies.” 
 
 Stoltenberg said he was unable to comment further as he “did not know what actually happened”. He added that it was a bilateral issue between the US and the UK. 
 
 Ian Blair, who was Metropolitan police commissioner during the London underground bombings on 7 July 2005, said his investigation had also been troubled by leaks from US intelligence. 
 
 Blair said he was sure the leaks had “nothing to do with Trump” given that similar leaks had happened during his own time investigating a terror attack. 
 
 “I’m afraid this reminds me exactly of what happened after 7/7, when the US published a complete picture of the way the bombs had been made up. We had the same protests. 
 
 “It’s a different world in how the US operates in the sense of how they publish things. And this is a very grievous breach but I’m afraid it’s the same as before.” 
 
 Lord Carlile, the former independent reviewer of terrorism legislation, described the leaks as “very unusual and irresponsible” and called for those responsible to be “called to account”. 
 
 He said: “Photos of the backpack after the event could be of utility to future bombmakers, for obvious reasons. Also, it damages decades of confidence between the UK and US services, the cohesion of the ‘Five Eyes’ group [the US, UK, Canada, Australia and New Zealand], and sharing of information with French, German and other security services. These leaks made yesterday a very bad day for national security in several countries, and those responsible should be called to account.” ||||| Manchester, England (CNN) A flurry of raids and arrests on Wednesday took aim at a terror network associated with the former university student who conducted the bombing at an Ariana Grande concert in Manchester days after returning from Libya, officials say. 
 
 The first images of the device Abedi is thought to have used to kill at least 22 people, including children, emerged Wednesday. 
 
 The New York Times posted photos that show what it said could be the detonator, a battery, nuts and screws for shrapnel, and fragments of a backpack used in the attack. 
 
 Meanwhile, two more victims were named, teenagers Chloe Rutherford and Liam Curry, who their families said were 'inseparable." 
 
 Another piece of shrapnel that appears to be a bolt, seen on the floor near the area of the attack that killed 22 people. 
 
 Another piece of shrapnel that appears to be a bolt, seen on the floor near the area of the attack that killed 22 people. 
 
 A screw on the floor of the foyer of the Manchester Arena that may have been packed into the device. 
 
 A screw on the floor of the foyer of the Manchester Arena that may have been packed into the device. 
 
 This is what's left of a battery that could have been used to power the device. 
 
 This is what's left of a battery that could have been used to power the device. 
 
 Shrapnel from the Manchester terror attack at the Ariana Grande concert. 
 
 Shrapnel from the Manchester terror attack at the Ariana Grande concert. 
 
 A ruler shows the length of a possible detonator that was reported to have been found in the suspect's left hand. 
 
 A ruler shows the length of a possible detonator that was reported to have been found in the suspect's left hand. 
 
 Another, closer image of the bag said to have been carried by the suspect, Salman Abedi, a 22-year-old British-born national of Libyan descent. 
 
 Another, closer image of the bag said to have been carried by the suspect, Salman Abedi, a 22-year-old British-born national of Libyan descent. 
 
 Images first posted by The New York Times show what remains of a backpack reportedly used to carry the bomb used in a suspected suicide attack at the Ariana Grande concert in Manchester on Monday, May 22. 
 
 Key developments 
 
 A sixth man was arrested late Wednesday in connection with the bombing. 
 
 A woman arrested earlier in Blackley has been released without charge. 
 
 The brother of the Manchester bomber was arrested in Libya. 
 
 A friend of the attacker's family says Abedi went to Libya after getting into trouble in UK. 
 
 Manchester United win the Europa League on emotional night two days after bombing 
 
 Suspects arrested 
 
 New details about Abedi emerged Wednesday -- including alleged links to terror groups, his troubles in Manchester after the death of a friend, his travel to Libya with a younger brother and their father's attempts to keep them from returning to the UK. 
 
 "It is very clear that this is a network we are investigating," Greater Manchester Police (GMP) Chief Constable Ian Hopkins said. 
 
 Six men have been arrested over the past two days in connection with the attack. They were taken into custody in the Manchester area and Nuneaton, about 100 miles southeast of Manchester, in the British Midlands. 
 
 A woman arrested during a raid on flats in Blackley has since been released without charge, according to the Greater Manchester Police. 
 
 Up to 3,800 military personnel have been made available to patrol key locations following the attack, Secretary Rudd said, and almost 1,000 are deployed. 
 
 The victims 
 
 As police worked to learn more about the extent of Abedi's network, more victims of the bombing were named. 
 
 Tribute from the family of Chloe Rutherford, 17, and the family of Liam Curry, 19 pic.twitter.com/nVNf8dS0ZQ — G M Police (@gmpolice) May 24, 2017 
 
 Among the dead are 8-year-old Saffie Rose Roussos from Leyland, and 15-year-old Olivia Campbell . Cheshire Police said one victim was an off-duty female officer. She was not identified. 
 
 Tributes were also paid to teenagers Chloe Rutherford, 17, and Liam Curry, 19, who were described by their families as "beautiful inside and out." 
 
 On Thursday, the UK will hold a minute of silence two days after Prime Minister Theresa May said Britain's threat level was raised from "severe" to "critical," and warned a "further attack may be imminent." 
 
 Late Wednesday, Manchester United beat Ajax 2-0 to win the Europa League soccer tournament as fans in the stands in Stockholm, Sweden, carried banners saying, "Manchester stands against terrorism." 
 
 Bomber's brother arrested in Libya 
 
 Abedi was on the radar of intelligence services, Home Secretary Amber Rudd told the BBC. 
 
 The bomber was in Libya for three weeks and returned days before his attack, US military officials assigned to US Africa Command told CNN. 
 
 In Libya, Abedi's brother -- identified as 20-year-old Hashim Ramadan Abu Qassem al-Abedi -- was arrested Tuesday night on suspicion of links to ISIS, said a statement from a Tripoli militia known as the Special Deterrence Force. 
 
 Hashim Ramadan Abu Qassem al-Abedi, a brother of Manchester bomber Salman Abedi was arrested in Tripoli, Libya, May 23. 
 
 The younger Abedi was allegedly planning a terror attack in Libya when arrested, the militia reported. He was picked up while allegedly receiving a money transfer from Salman Abedi. 
 
 CNN has not been able to independently verify the details from the militia. The UK Foreign Office, Metropolitan Police and Greater Manchester Police had no immediate comment on the reported arrest in Libya. 
 
 The militia claims the younger Abedi admitted knowledge about the Manchester attack and was in Britain for its planning. The statement also said he left the UK in mid-April and had been under surveillance about a month and a half. 
 
 Soldiers on patrol at the Prime Minister's office in London on Wednesday. 
 
 Sons got in trouble? 
 
 Abedi's father brought Salman and his younger brother to Libya from Manchester about a month ago because they were getting in trouble in England, a family friend in Libya told CNN. 
 
 The father, a police officer whose name is Ramadan, took his sons' passports so they could not travel, the friend said. 
 
 The friend and another source in Manchester's Libyan community said Salman got his passport back after telling his father he was going on a pilgrimage to Saudi Arabia. He returned to England instead. 
 
 Abedi carried out the attack three days after returning to the UK, said the family friend, who described the father as "shaking" after learning of his son's involvement. 
 
 US military officials said American and UK intelligence services, along with the Africa Command, are looking at the possibility Abedi could have met with ISIS members or operatives from al Qaeda in the Islamic Maghreb, a North African militant organization. 
 
 Rudd earlier slammed the US for leaking several details on the attack investigation as "irritating" and asked them to stop. 
 
 Rudd refused to respond to Collomb's comments that Abedi was believed to have been to Syria. She also refused to elaborate on reports in Arab media Abedi's father had links to Islamist rebel groups in Libya. 
 
 Photos: Deadly explosion at Ariana Grande concert People in Manchester, England, gather in St. Ann's Square on Thursday, May 25. They were observing a national minute of silence to remember the victims of a suicide bombing at an Ariana Grande concert. Hide Caption 1 of 22 Photos: Deadly explosion at Ariana Grande concert Britain's Queen Elizabeth II speaks to 15-year-old Millie Robson and her mother, Marie, during a visit to the Royal Manchester Children's Hospital on May 25. The Queen was visiting those injured in the attack. Hide Caption 2 of 22 Photos: Deadly explosion at Ariana Grande concert A police officer guards a house in Manchester as investigations continued on May 25. Police say a man carrying explosives acted as a lone attacker and died in the blast. Hide Caption 3 of 22 Photos: Deadly explosion at Ariana Grande concert Flowers and tribute messages are left for victims in St. Ann's Square. Hide Caption 4 of 22 Photos: Deadly explosion at Ariana Grande concert A women sheds tears after observing the minute of silence in St. Ann's Square. Hide Caption 5 of 22 Photos: Deadly explosion at Ariana Grande concert A Manchester road is closed off as police raids continued on May 25. Hide Caption 6 of 22 Photos: Deadly explosion at Ariana Grande concert Local residents hold Manchester City and Manchester United soccer jerseys during the national minute of silence. Hide Caption 7 of 22 Photos: Deadly explosion at Ariana Grande concert Police officers deliver flowers to a makeshift memorial in Manchester on Wednesday, May 24. Hide Caption 8 of 22 Photos: Deadly explosion at Ariana Grande concert Women cry after placing flowers in Manchester on May 24. Hide Caption 9 of 22 Photos: Deadly explosion at Ariana Grande concert A forensics team works at the scene of the explosion on Tuesday, May 23. Hide Caption 10 of 22 Photos: Deadly explosion at Ariana Grande concert British Prime Minister Theresa May condemns the "callous terrorist attack" as she delivers a statement in London on May 23. Hide Caption 11 of 22 Photos: Deadly explosion at Ariana Grande concert Police help someone after the attack at Manchester Arena on Monday, May 22. Hide Caption 12 of 22 Photos: Deadly explosion at Ariana Grande concert People gather outside the arena. "We can confirm there was an incident as people were leaving the Ariana Grande show last night," police said on Twitter early on Tuesday. "The incident took place outside the venue in a public space. Our thoughts and prayers go out to the victims." Hide Caption 13 of 22 Photos: Deadly explosion at Ariana Grande concert People receive medical attention at a railway station close to the arena. The incident happened shortly after Grande had left the stage, shortly after 10:30 p.m. (5:30 p.m. ET) according to eyewitnesses. Calvin Welsford, an 18-year-old concertgoer, said that he heard a "loud bang" a couple of minutes after Grande's set had finished. Hide Caption 14 of 22 Photos: Deadly explosion at Ariana Grande concert Paramedics respond to the scene. Hide Caption 15 of 22 Photos: Deadly explosion at Ariana Grande concert Emergency workers and concert attendees gather outside the arena. Hide Caption 16 of 22 Photos: Deadly explosion at Ariana Grande concert People stand by a cordoned-off street close to the arena. Hide Caption 17 of 22 Photos: Deadly explosion at Ariana Grande concert Greater Manchester Police tweeted that emergency services were "responding to (a) serious incident at Manchester Arena. Avoid the area. More details will follow as soon as available." Hide Caption 18 of 22 Photos: Deadly explosion at Ariana Grande concert People are escorted away from the arena. Hide Caption 19 of 22 Photos: Deadly explosion at Ariana Grande concert People sit outside near the arena. The crowd was made up of mainly younger people who had come to see Grande in her first of three scheduled concerts in the UK. Hide Caption 20 of 22 Photos: Deadly explosion at Ariana Grande concert An injured man is helped at the scene. Hide Caption 21 of 22 Photos: Deadly explosion at Ariana Grande concert People hug near armed police who responded to the scene. Hide Caption 22 of 22 
 
 Attacker's ties to Libya 
 
 Abedi's three weeks in Libya has raised questions about his travel and how aware British authorities were of him and his movements in recent weeks. 
 
 US Africa Command, which oversees US military involvement in Libya, is using contacts there to learn where Abedi went and whom he might have met with, US military officials said. 
 
 Police safeguard Buckingham Palace in London on Wednesday. 
 
 Abedi was a student at the University of Salford in Manchester. The university said he studied business and management but was not attending this semester. 
 
 Libya has become a hotspot for terrorism since the downfall and death of dictator Moammar Gadhafi in 2011. ISIS has gained a foothold in the country, and a tenuous UN-backed government there has struggled to assume full command of the security situation. 
 
 ISIS claimed Monday's attack, saying on its Telegram channel Tuesday that a "soldier of the caliphate" planted explosive devices at the arena, according to a US counterterrorism source. ISIS routinely claims attacks with which it has no proven connection.
– Police in Britain, angered by repeated leaks of sensitive information, have decided to stop sharing information on the Manchester terrorist attack with American authorities. The decision came after photographs believed to show bomb debris appeared in a New York Times report, sources tell the BBC, which calls the step a "hugely significant" move that shows just how angry British authorities are about leaks that could hinder the investigation. Prime Minister Theresa May is expected to raise the issue with President Trump at a NATO meeting Thursday, though the leaks are believed to have come from US law enforcement agencies, not the White House. In other coverage: The Times report that infuriated British police has photos of the remains of a backpack and a battery found at the scene, along with detailed analysis of the blast site. Analysts say the bomb, powerful enough to embed shrapnel in metal walls, appears to have been made with "forethought and care." Two more men in Britain have been arrested in connection with the Monday night attack, bringing the number of people in custody to eight, including one woman, reports Reuters. Suicide bomber Salman Abedi's father and brother have been detained in Libya. British authorities say the leaking of information provided under a long-standing cooperation deal is unacceptable. "These images from inside the American system are clearly distressing to victims, their families, and other members of the public," a government source tells the Guardian. "Protests have been lodged at every relevant level between the British authorities and our US counterparts." Rep. Mike McCaul, chairman of the House Homeland Security Committee, says the device detonated at the end of an Ariana Grande concert shows a "level of sophistication" that suggests the involvement of foreign terror cells, the AP reports. "It looks like we're not dealing with a lone wolf situation. There's a network—a cell of ISIS-inspired terrorists," the Republican says. Sky News reports that German intelligence services say Abedi was in the country around four days before the Manchester attack. Security camera footage obtained by Sky shows a man suspected to be Abedi in Manchester's Arndale shopping center on Friday with what may be the backpack used in the bombing. One of the latest of the 22 victims to be identified is 14-year-old Eilidh MacLeod, who had traveled from the Scottish island of Barra to Manchester with her mother and a friend for the concert, the Telegraph reports. "Eilidh was vivacious and full of fun. She loved all music, whether it was listening to Ariana or playing the bagpipes with her pipe band," her family said in a statement.