Police started to interrogate terror attack witnessesand Ataturk airport staff.
The investigation is trying to determine the identity of the attackers and whether they had accomplices.
Turkish news agencies are reporting that the airport was attacked by 7 suicide bombers, three of whom blew themselves. So far none of groups had taken the responsibility , but the government accuses the Islamic state organization .
Due to shooting and explosions 36 people were killed and 150 were injured. Foreigners are among the dead.