Istanbul airport bombers identified as Russian, Kyrgyz and Uzbek nationals

The attackers is believed to have entered Turkey on May 25 to carry out the attack on one of the world's busiest airport

Turkish investigators have identified three bombers who attacked Istanbul’s Ataturk Airport on Tuesday.

The worst bomb attacks in Turkey since 1986 has killed 42 people and injured 239.

The suspected ISIS militants were from Russia, Kyrgizstan and Uzbekistan, a Turkish official said on Thursday.

The Russian national who blew himself up at the entrance of the airport terminal has been reportedly identified as Osman Vadinov from Dagestan which borders Chechnya.

There were eight attackers who targeted the airport, the Yeni Safak said in a report.

While three blew themselves up at the airport, the fourth was among those detained.

Investigators are looking for four others the pro-government newspaper said citing police officials.

Three of the 13 people detained in raids across Istanbul were foreigners.

The attack was suspected to be planned Akhmed Chatayev. Chatayev who is of Chechen origin is on the UN sanctions list for providing training to Russian speaking ISIS militants.

The attack was planned in a rented building in Istanbul’s fatih district, the newspaper citing intelligence sources said.