13 suspects appeared in an Istanbul court in connection with a triple suicide bombing at the city's Ataturk airport.
On Saturday, Turkish President Tayyip Erdogan said around 20 ISIS militants, mainly foreigners, were in custody in connection with the attack. Two Russian nationals have been identified as suspected IS suicide bombers in the attack that is thought to have been masterminded by a Chechen, Turkish media said on Friday. Forty-five people were killed and 237 others wounded in Tuesday's bombings and shootings, which targeted one of the world's busiest airports.
Turkey, part of the NATO military alliance and a member of the U.S.-led coalition which has been bombing IS in Syria and Iraq, has been hit by at least half a dozen suicide attacks blamed on the group over the past year.