Given the task definition and input, reply with output. In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

At least 46 people have been killed in the Yemeni capital after Saudi-led air strikes targeted a suspected weapons base held by Houthi fighters. 
  
 Health officials told Al Jazeera on Monday that more than 300 people were wounded when warplanes reportedly struck a Scud missile base in Faj Attan, a district in western Sanaa, that sparked a series of explosions. 
  
 Thick black smoke billowed into the sky as scores of nearby houses and vehicles were destroyed leaving the streets littered with debris. 
  
 Who are the Houthis? - The Houthis belong to the Zaydi community, a Shia sect that makes up about a third of Yemen's population. - They launched a rebellion in 2004 in their stronghold northern region of Saada. - Their initial demand was an end to political and economic marginalisation in the north. - Another objective was allegedly to restore the rule of Shia imams, who ruled Yemen for nearly 1,000 years. - They now say they are fighting for more rights for all Yemenis, saying people in both the north and south are being wronged by the country's rulers. - The Houthis participated in the 2011 uprising and gained political acceptance in Yemen. But soon they broke away from the rest of the political forces that deposed Ali Abdullah Saleh. - They resumed military action last year and have since seized control of Sanaa and several other key cities as they continue their push across the country. For more on the rise of the Houthis, look at our Yemen timeline. 
  
 "This was by far the strongest explosion witnessed in Sanaa so far. Hundreds, if not thousands of homes have been damaged, sending thousands of people to flee the area," Hakim al-Masmari, the editor-in-chief of the Yemen Post, told Al Jazeera. 
  
 Residents said the explosions sent shockwaves across the city with civilians fleeing from their homes in the aftermath. 
  
 "It was like the doors of hell opened,'' resident Mohammed Sarhan told the Associated Press news agency. 
  
 "I felt the house lift up and fall," he said. 
  
 Iran's Foreign Ministry said it was summoning Saudi Arabia's envoy to Tehran after windows at its embassy were shattered by the blast. 
  
 Indonesia, whose embassy is nearby, also condemned the strikes. 
  
 "Several diplomatic staff were injured in the air strike. It also damaged the embassy building and all vehicles belonging to the embassy," Foreign Minister Retno Marsudi said. 
  
 Riyadh Yassine, Yemen's foreign minister, said Gulf countries would launch a large reconstruction project to rebuild the country after the conflict had ended. 
  
 The targeted base belonged to the missile brigade of the elite Republican Guard, an army unit which was loyal to former president Ali Abdullah Saleh who was forced to step down in 2012 after a wave of protests against his rule. 
  
 Army units loyal to Saleh have sided with the Houthis in a fight against the government of President Abd-Rabbu Mansour Hadi. 
  
 Al Jazeera's Mohamed Vall, reporting from Jizan near the Yemen-Saudi border, said Riyadh may have targeted the base over fears that Houthi fighters could use scud missiles at the base to target the kingdom. 
  
 "The Saudis are afraid that if these missiles are taken near the border they will inflict damage there." 
  
 "If modified they [scud missiles] can reach hundreds of kilometres in distance," he said. 
  
 Saudi Arabia and other Sunni-ruled Gulf powers began the air campaign on March 26, hoping to roll back the Houthis who seized Sanaa in September and forced Hadi to flee the country. 
  
 The kingdom says the air strikes will continue until Hadi is reinstated and the Houthis surrender. 
  
 In the southern coastal city of Aden, fierce fighting was reported on Monday in the Sheikh Othman district as fighters loyal to Hadi battled Houthis continuing their push south. 
  
 Clashes also raged in the central city of Taiz, which is in lockdown with pitched street battles and casualties reported on both sides. 
  
 Meanwhile, the US said it was deploying the USS Theodore Roosevelt in the waters off Yemen to intercept any Iranian vessels carrying weapons to the Houthis. 
  
 Tehran has repeatedly denied claims of backing the Houthis, and has denounced the Saudi-led campaign as a "genocide" and "major crime." ||||| FILE - In tbhis May 29, 2003 file photo, sailors man the rails as the USS Theodore Roosevelt is manuvered into it's berth at the Norfolk Naval Station in Norfolk, Va. U.S. Navy officials say the aircraft... (Associated Press) 
  
 FILE - In tbhis May 29, 2003 file photo, sailors man the rails as the USS Theodore Roosevelt is manuvered into it's berth at the Norfolk Naval Station in Norfolk, Va. U.S. Navy officials say the aircraft... (Associated Press) 
  
 WASHINGTON (AP) — In a stepped-up response to Iranian backing of Shiite rebels in Yemen, the Navy aircraft carrier, USS Theodore Roosevelt, is steaming toward the waters off Yemen to beef up security and join other American ships that are prepared to intercept any Iranian vessels carrying weapons to the Houthi rebels. 
  
 The deployment comes after a U.N. Security Council resolution approved last week imposed an arms embargo on the Iranian-backed Shiite Houthi rebels. The resolution passed in a 14-0 vote with Russia abstaining. 
  
 Navy officials said Monday that the Roosevelt was moving through the Arabian Sea. A massive ship that carries F/A-18 fighter jets, the Roosevelt is seen more of a deterrent and show of force in the region. 
  
 The U.S. Navy has been beefing up its presence in the Gulf of Aden and the southern Arabian Sea in response to reports that a convoy of about eight Iranian ships is heading toward Yemen and possibly carrying arms for the Houthis. Navy officials said there are about nine U.S. warships in the region, including cruisers and destroyers carrying teams that can board and search other vessels. 
  
 The officials spoke on condition of anonymity because they were not authorized to discuss the ship movement on the record. 
  
 Saudi Arabia and several of its allies, mainly Gulf Arab countries, have been trying to drive back the rebels, who seized the capital of Sanaa in September and have overrun many other northern provinces with the help of security forces loyal to former President Ali Abdullah Saleh. The U.S. supports the Saudi campaign. 
  
 Western governments and Sunni Arab countries say the Houthis get their arms from Iran. Tehran and the rebels deny that, although the Islamic Republic has provided political and humanitarian support to the Shiite group. 
  
 The U.S. has been providing logistical and intelligence support to the Saudi coalition launching airstrikes against the Houthis. That air campaign is now in its fourth week, and the U.S. has also begun refueling coalition aircraft involved in the conflict. 
  
 White House spokesman Josh Earnest would not comment specifically on any Navy movements in Yemeni waters, but said the U.S. has concerns about Iran's "continued support for the Houthis. 
  
 "We have seen evidence that the Iranians are supplying weapons and other armed support to the Houthis in Yemen. That support will only contribute to greater violence in that country. These are exactly the kind of destabilizing activities that we have in mind when we raise concerns about Iran's destabilizing activities in the Middle East." 
  
 He said "the Iranians are acutely aware of our concerns for their continued support of the Houthis by sending them large shipments of weapons." 
  
 The expanded U.S. Navy activity in the region comes at a sensitive time, as the U.S. and six world powers have reached a framework deal with Iran to control its nuclear program. Since the preliminary deal with reached on April 2, Iran and the U.S. have been disputing the details of the deal. And on Monday, a lawyer for Tehran-based Washington Post reporter Jason Rezaian said Tehran had charged Rezaian with espionage and three other crimes. The Obama administration dismisses the charges as "absurd." 
  
 The U.S. Navy generally conducts consensual boardings of ships when needed, including to combat piracy around Africa and the region. So far, however, U.S. naval personnel have not boarded any Iranian vessels since the Yemen conflict began. 
  
 Officials said it's too soon to speculate on what the Navy ships may do as the Iranian convoy approaches, including whether Iran would consent to a boarding request, and what actions the Navy would take if its request was refused. 
  
 Yemen, the Arab world's poorest country, has been pushed to the brink of collapse by ground fighting and the Saudi-led airstrikes in support of current President Abed Rabbo Mansour Hadi, who was forced to flee to Saudi Arabia. Observers say the fighting in the strategic Mideast nation is taking on the appearance of a proxy war between Iran, the Shiite powerhouse backing the Houthis, and Sunni-dominated Saudi Arabia. 
  
 ___ 
  
 Associated Press writers Jim Kuhnhenn in Washington and Ahmed al-Haj in Sanaa, Yemen, contributed to this report. ||||| WASHINGTON The U.S. Navy has sent an aircraft carrier and a guided-missile cruiser into the waters near Yemen, officials said on Monday, heightening the U.S. maritime security presence as concerns mount over Yemen's escalating conflict. 
  
 The U.S. Navy sent the carrier USS Theodore Roosevelt and its escort cruiser, USS Normandy, from the Gulf into the Arabian Sea on Sunday. Army Colonel Steve Warren, a Pentagon spokesman, denied reports the ships were on a mission to intercept Iranian arms shipments to Yemen. 
  
 The ships will join seven other U.S. warships in the waters near Yemen, which is torn by civil strife as Iranian-backed Houthi rebels battle forces loyal to the U.S.-backed president. 
  
 The U.S. Navy said it had increased its presence in the area because of the instability. It said in a statement the purpose was to "ensure the vital shipping lanes in the region remain open and safe." 
  
 The movements come as U.S. officials closely monitor an approaching convoy of seven Iranian ships believed to be headed toward Yemen with unknown cargo aboard. 
  
 At the White House, spokesman Josh Earnest acknowledged concerns about arms shipments from Tehran to the Houthis. 
  
 "We have seen evidence that the Iranians are supplying weapons and other forms of support to the Houthis in Yemen," Earnest said. 
  
 "That’s the kind of support that will only contribute to greater violence in that country, a country that’s already been racked by too much violence." 
  
 The Shi'ite Muslim Houthi fighters sidelined the central government after seizing the capital Sana'a in September and occupying a broad swath of Yemen, which borders oil giant Saudi Arabia. 
  
 Saudi Arabia and a coalition of its Arab allies have launched air strikes in an effort to stop the advance of the Houthis, a move Tehran has condemned. 
  
 One U.S. official said the presence of the U.S. warships off Yemen give American decision-makers options for action in the event the situation deteriorates. 
  
 The other U.S. warships in the region include two destroyers, two mine-sweepers and three amphibious ships carrying 2,200 U.S. Marines. 
  
 The United States has deepened intelligence cooperation with Saudi Arabia as it carries out airstrikes in Yemen and is providing logistical support to the Saudi-led coalition. But it is stopping short of directly participating in the strikes. 
  
 (Reporting by David Alexander and Phil Stewart; Editing by Doina Chiacu and Christian Plumb) |||||

Proxy war, anyone? A US Navy aircraft carrier is headed for waters near Yemen amid concerns that Iran is sending fresh arms to Shiite Houthi rebels there, the AP reports. The USS Theodore Roosevelt will join other US ships in the area while roughly eight Iranian vessels, possibly carrying arms, may be steaming toward Yemen. Navy officials revealed the move anonymously and said the Roosevelt would be a deterrent, not an offensive weapon. Publicly, a Pentagon spokesman denied that the Roosevelt and its accompanying cruiser, USS Normandy, were there to intercept arms, Reuters reports. The US Navy said it was beefing up its Yemen presence simply to "ensure the vital shipping lanes in the region remain open and safe." The move comes as Saudi Arabia and its allies are trying to crush the Houthi rebels, who grabbed Yemen's capital city of Sanaa last year and seized power in northern provinces. The West says Iran is shipping arms to the Houthis, which Tehran denies. Meanwhile, the US is giving intelligence and logistical backing to Sunni airstrikes in Yemen; one such attack targeting a scud missile base in Sanaa just killed dozens and wounded 300, Yemeni officials told Al Jazeera today. Yemen, the poorest country in the Middle East, is said to be near collapse. All of this while the US and six other nations are trying to wrap up a controversial deal to curb Iran's nuclear program. (Read about a joint military force being set up by the Arab League.)