....to quote Joe Biden, this is a big f***ing deal...
(Sky News) The Turkish military says it has taken over after Turkey's PM said a military faction had been involved in an attempted coup.
Prime minister Binali Yildirim has called for calm, saying security forces are doing what is necessary to resolve the situation.
Turkish broadcaster NTV is showing footage of tanks at the entrance to Istanbul's Ataturk airport.
Military vehicles are blocking two bridges in Istanbul, while military jets have been heard flying over the Turkish capital, Ankara.
Some media reports have said ambulances were seen in front of Turkey's military headquarters.
Mr Yildirim has warned that those responsible for this "illegal attempt " will pay the "highest price."