"According to information I have received, at the entrance to the Ataturk Airport international terminal a terrorist first opened fire with a Kalashnikov and then blew themself up," he said in comments broadcast by CNN Turk.
Pictures posted on social media from the site showed wounded people lying on the ground inside and outside one of the terminal buildings.
Authorities halted the takeoff of scheduled flights from the airport and passengers were transferred to hotels, a Turkish Airlines official said.
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