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Earlier authorities had blamed a banned Islamist party, citing an alleged confession of one arrested suspect. Two Americans, a Swiss and a Dutch national were hit by a car in Danghara, south-east of the capital Dushanbe. The attackers then stabbed their victims. Two other foreigners were injured. Earlier on Tuesday, Tajikistan's interior ministry said that a man suspected of leading the attack was an active member of the Islamic Renaissance Party of Tajikistan (IRPT), which was outlawed three years ago. Exiled leaders of the IRPT denied any link to the attack, saying the authorities were trying to use the incident for political purposes, Reuters reports. Tajikistan's government banned the IRPT in 2015, accusing it of planning a coup. The video released by IS shows five young men seated under a tree in a mountainous area with the IS flag in the background, BBC Monitoring reports. One denounces the rulers of Tajikistan as "apostates", who "sold their religion" and allowed the country to be occupied by "unbelievers". They later join hands and swear loyalty to IS leader Abu Bakr al-Baghdadi, before pledging to attack "unbelievers". The identity of the men and whether it was they who carried out the attack cannot as yet be verified. IS efforts in Central Asia By Mina Al-Lami, BBC Monitoring IS isn't known to have a presence in Tajikistan. However, the group has had members from the country, and from other Central Asian states. Tajik authorities have in the past arrested alleged IS recruiters or sympathisers. In May 2015, a former member of Tajikistan's special OMON police unit, Gulmurod Khalimov, pledged allegiance to IS and migrated to territory held by the group. This was flaunted in an IS-linked video in an effort to inspire others in Tajikistan to follow his example. In February 2018, IS said its attacks in Russia and former Soviet countries had entered a new phase, inciting sympathisers to attack Christians in "the Caucasus, Crimea, and Central Asia countries". "The current stage", said IS via its weekly newspaper al-Naba, "does not require groups with big numbers of trained fighters, nor heavy weapons. Rather, it requires a mujahid to use whatever weapon he can get his hands on" to attack. Such attacks, it said, would instil fear in Christians and prompt them to leave these countries. Following Monday's attack, four suspects were killed by authorities in a special operation, the interior ministry said. Another four were arrested, and a damaged car believed to have been involved was recovered. An amateur video which appears to be of the attack captures the moment a car is driven into unsuspecting cyclists. According to Tajikistan's interior minister, three of the tourists died instantly and one on the way to a nearby hospital. "One had knife wounds, he received medical help, now his condition is stable," Ramazon Hamro Rahimzoda told reporters. The victims were on a tour in the Central Asian country with three other tourists from France, the Netherlands and Switzerland. Tajikistan has struggled with poverty and instability since the former Soviet republic became independent in 1991. It had declared 2018 a "year of tourism", AFP news agency said.
The Islamic State (IS) group has released a video purporting to show a group of men who killed four foreign cyclists in Tajikistan on Sunday pledging allegiance to its cause.

An aircrew was on a routine patrol when it spotted the group frantically waving a makeshift flag on Anguilla Cay. The Cuban nationals told officials they had survived largely on coconuts. One of the crew members involved in the rescue efforts told the BBC he was "amazed that they were able to survive for so long". The group was first spotted on the island located between the Florida Keys and Cuba on Monday. Coast Guard official Riley Beecher told the BBC that he was out on patrol when "something caught the attention of my eye". When he came back round at a lower altitude, he realised that there were people on the island in distress. The crew was not equipped to carry out an immediate rescue, but food, water and a radio were dropped to them so they could communicate. "Unfortunately we didn't have any fluent Spanish speakers but in my broken Spanish I was able to discern that they were from Cuba and that they needed medical assistance. They made sure to stress that they had been on the island for 33 days," Lt Beecher said. The group of two men and one woman told Coast Guard officials that they swam to the island after their boat sank. Justin Dougherty said the group later told him they were "able to get nourishment from coconuts". "At first glance the island doesn't seem to have much, but there is some shrubbery there and some trees so they were able to stay out of the elements somewhat," he said. US media reports say they also survived on rats and conchs. The trio were finally airlifted from the island by helicopter on Tuesday and taken to a medical centre in Florida, though they have no reported major injuries. They have since been transferred to US Immigration and Customs Enforcement, the Coast Guard says. Members of the rescue team told the BBC they had never witnessed a situation like it before. "I've never come across anyone who's been [stranded] for anywhere like that length of time before," Lt Dougherty said. You might be interested in watching:
Three people believed to have been stranded on an uninhabited island in the Bahamas for 33 days have been rescued, the US Coast Guard says.

The bird was found at Ferry Meadows nature reserve in Peterborough last month in "a large amount of discomfort" and taken to an RSPCA hospital. She was initially too weak for surgery, but has now had the ball removed. "It's so sad to think that this poor swan had to suffer as a result of an injury which was most likely caused deliberately," the charity said. The female mute swan's face was badly swollen when the RSPCA arrived at the nature reserve, as the ball bearing was wedged in her cheek. She was taken to the RSPCA's East Winch Wildlife Centre in Norfolk where X-rays revealed "a ball bearing, likely to have been fired from a catapult - walled off in the side of her face". Centre manager Alison Charles said: "She was very weak when she arrived at the centre, so we needed to give her time to build up her strength before we carried out the surgery," "The surgery went well and the ball bearing was removed and she's already looking a little brighter. "She's on antibiotics and hopefully will be strong enough to recover. She's likely to be with us for a number of weeks, though." "We want to highlight this so that people can keep an eye out for wildlife in the area, although we hope that this was an isolated incident." Swans and all wild birds are protected under the Wildlife and Countryside Act 1981, so the RSPCA is working with police to try to find the person who shot the swan.

A swan had to have a large ball bearing removed from its face after it was shot with a catapult.

