The three attackers who struck Istanbul’s international airport Tuesday were from Russia, Kyrgyzstan and Uzbekistan, the Turkish prime minister’s office confirmed.
Meanwhile, 13 arrests were made in Istanbul after a series of overnight anti-terror raids, according to Turkey’s Ministry of the Interior. Of those arrested, three were foreign nationals. Their nationalities were not identified.
The overnight operation consisted of 16 raids at different addresses in Istanbul, the ministry said. State-run media reported the addresses were in the city’s Pendik, Basaksehir and Sultanbeyli neighborhoods.
The raids follow Tuesday’s deadly attack at the city’s Ataturk airport, which left 42 dead and 238 others injured, according to Istanbul Gov. Vasip Sahin. It was unclear whether the raids were directly linked to the attack.
As of today, 144 injured victims have been discharged from the hospital and 94 remain under treatment. The bodies of 33 people who lost their lives in the deadly attack have been handed over to their relatives, Gov. Sahin said.
No one has claimed responsibility for the attack, carried out by three individuals, but Turkey’s interior minister has said “all findings show it’s ISIS.” And CIA Director John Brennan said Tuesday the attack “bears the hallmarks” of ISIS’ “depravity.”
In other ISIS-related developments, senior Defense officials confirmed to ABC News that as many as 250 ISIS fighters were killed in Iraq in airstrikes south of Fallujah Wednesday. Forty vehicles were also destroyed in the airstrikes.
One of the officials said “we’re still assessing the strikes and gathering details” but the figure of 250 killed is “consistent with our early assessments.”
ABC News’ Engin Bas contributed to this report.