Explosions rocked Turkey's largest airport Tuesday night, killing at least 10 people and wounding dozens more, officials said.
Authorities and witnesses said terrorists opened fire at the entrance of the international arrivals area at Ataturk International Airport before explosives were detonated.
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Deputy of Istanbul Eren Erdem said on Twitter that 10 people were dead and at least 20 were injured. The Associated Press reported that nearly 50 people were killed, according to an unnamed senior Turkish official. The death toll could not be independently confirmed by NBC News.
The U.S. State Department said it was determining if any victims were Americans.
Tweet: If in #Turkey, remain aware of your surroundings and continue to monitor local news media for updates.
At least two blasts occurred at a busy terminal that serves as a major travel hub, particularly for people moving between Europe and Asia. U.S. carriers were halted from flying directly into Turkey — a country that has become the main transit point for foreign fighters in and out of Syria, where ISIS controls part of the country.
A person who works for a contractor inside the airport told NBC News that he saw three suicide bombers.