Turkey: 13 held over Istanbul Ataturk Airport attack

Three suspected IS suicide bombers killed 44 people in a gun and bomb attack at Istanbul's main airport on Tuesday, the deadliest in a string of attacks in Turkey this year. Other media reports have given different versions of Osmanov's name.

Two have been identified as Rakim Bulgarov and Vadim Osmanov, according to Turkey's state news agency Anadolu, citing an anonymous prosecution source.

Turkish officials say the three suspected Islamic State attackers at Istanbul's Ataturk airport came from Russia, Uzbekistan and Kyrgyzstan, and make numerous related arrests during raids on suspected Islamic State safe houses across the Turkish capital.

"I don't doubt for a second, with God's will that we will overcome terror, terrorist organizations and terrorist attacks", Turkish President Tayyip Erdogan said.

The Kurdistan Freedom Falcons (TAK) - a radical splinter group of the better-known Kurdistan Workers Party (PKK) - claimed the suicide bomb attack in Ankara, saying that it was in response to security operations in the southeast. "Their place is in hell", Erdogan said, speaking in Istanbul following Friday prayers. A government official in Istanbul could not immediately confirm the report.

Turkish media identified the strike's organizer as Akhmed Chatayev, the Chechen leader of an ISIS cell in Istanbul who reportedly found accommodation for the bombers.

"Russian citizens - many of whom are Chechens or Dagestanis from the largely Muslim North Caucasus region of Russia - are the largest group of foot soldiers in ISIS from a non-Muslim majority country", analysts Peter Bergen and David Sterman wrote in an opinion piece for CNN. They did not provide further details on their identities.

In the most recent attack, a auto bomb ripped through a police bus in central Istanbul during the morning rush hour, killing 11 people and wounding 36 near the main tourist district, a major university and the mayor's office. The private Dogan news agency said the Russian attacker had entered the country one month ago and left his passport in a house the men had rented in Istanbul's Fatih neighborhood. He said he was shocked the man was a suspect in the attacks. "It shelled ISIS positions on a daily basis and it hosts coalition which is fighting ISIS", he said, noting that the bombing would not have an effect on Turkey's diplomatic endeavors. Their presence has been credited with much of the advances made by Al Nusra, the Syrian branch of Al Qaeda, in northwestern Idlib province. IS militants have also attacked the town with cross-border rocket fire, killing 21 people there since January. That same video shows "a 5-6 year old child with four killed ISIL militants lying nearby". The Haber Turk newspaper said 11 more suspects - all foreigners - were detained in a separate raid early Friday. Earlier this week, it emerged that one of the foreign nationals killed in the Tuesday attack was the father of an IS fighter who had flown to Istanbul to try to have his son released from detention.

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