Explosions rocked Turkey's largest airport Tuesday night, killing at least three dozen people and wounding scores more in what appeared to be a coordinated terror attack, officials said.
The gunmen opened fire around 10:30 p.m. local time (3:30 p.m. ET) at the entrance of the international arrivals area at Ataturk International Airport in Istanbul, where fiery explosives sent people running for their lives, witnesses and officials said.
The number of dead and injured fluctuated steadily overnight amid the confusion; Prime Minister Binali Yildirim said on television that at least 36 people were killed. The Turkish Red Crescent counted "over a hundred" injured.
The White House condemned the blasts as a "heinous terrorist attack," and the U.S. State Department said it was determining if any victims were American.
Initial indications are that ISIS carried out the killings, Yildirim said, "but we are still working on determining the cause."