The military in Turkey has declared a military coup with bridges closed in Istanbul and military aircraft flying over the capital of Ankara.
Traffic has been stopped from crossing both the Bosphorus and Fatih Sultan Mehmet bridges in Istanbul. There are reports of gunshots in the capital Ankara. Tanks are also said to be stationed outside Istanbul airport.
Meanwhile, Turkey's Prime Minister Binali Yildirim told NTV television by telephone: "We are working on the possibility of an attempt. We will not allow this attempt. Those who are in this illegal act will pay the highest price," he added, saying it would not be correct to describe the move as a "coup".