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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.

She expressed concern over reports of Chinese intellectuals and activists being "arbitrarily detained" in recent weeks - including the arrest of prominent artist Ai Weiwei on Sunday. She was speaking as the State Department released its annual report on human rights around the world. The survey assesses the state of human rights in 194 countries. The State Department also highlighted serious violations in Iran, Iraq, Burma, North Korea, the Ivory Coast, Zimbabwe, Ukraine, Russia and Belarus. 'Courage and determination' Unveiling the report in Washington on Friday, Mrs Clinton said the US was deeply concerned by recent reports of arrests - including Mr Ai's. "Such detention is contrary to the rule of law and we urge China to release all of those who have been detained for exercising their internationally recognised right to free expression and to respect the fundamental freedoms and human rights of all of the citizens of China," she said. As it covers 2010, the report does not focus on the revolutions that have swept across the Middle East and North Africa this year, toppling long-time authoritarian leaders in Tunisia and Egypt as well as sparking uprisings in Bahrain, Libya, Yemen and elsewhere. But Mrs Clinton said the US was "particularly inspired by the courage and determination of the activists in the Middle East and North Africa and in other repressive societies who have demanded peaceful democratic change and respect for their universal human rights", AFP reported. In the introduction to its 2010 Country Reports on Human Rights Report , the state department said: "At this moment, we cannot predict the outcome of these changes and we will not know the lasting impacts for years to come. "The United States will continue to monitor the situations in these countries closely, knowing that the transition to democracy is not automatic and will take time and careful attention," it added.
US Secretary of State Hillary Clinton has criticised China for what she calls its worsening human rights record.

The cantilever clock, on the corner of Princes Street and Hope Street, became a well-known landmark after being added to what was Binns department store. However, its painted pipers that once marched on the hour and half hour fell silent after the clock fell into disrepair. The project is part of plans to create a visitor attraction at the site. Drinks giant Diageo is in the process of transforming the former House of Fraser store, which shut last year, into the Johnny Walker "visitor experience". They said the clock would be "brought back to life" by expert clockmakers who had been commissioned to restore it to its original glory. Known locally as the "Binns Clock" after the former department store, the clock was first installed in 1960 and became a popular meeting place for Edinburgh residents, particularly as a romantic rendezvous point for people going on dates. Mark Crangel, the clockmaker from Cumbria Clock Company who is overseeing the restoration, said: "It's great to be working on this clock because it is such a well-known landmark in Edinburgh. "It's not worked for a while now and with a lot of moving parts, so it will be a demanding job but it will be incredibly satisfying to see the clock working again as it did when it was first installed 60 years ago."

A clock that became renowned as a meeting point for Edinburgh residents in the 1960s is to be restored.

