Turkish President Recep Tayyip Erdogan has flown in to Istanbul, after an army group said it took over the country. He was seen surrounded by supporters, and said the coup attempt was an “act of treason” in a live TV speech. The army group earlier declared that a “peace council” now ran the country and there was a curfew and martial law. But Prime Minister Binali Yildirim later said the situation was largely under control and a no-fly zone was in force over the capital Ankara. Mr Yildirim said 130 people had so far been arrested, and he ordered the military to shoot down aircraft being used by coup plotters. Earlier, one of the helicopters being flown by forces involved in the coup attempt was shot down over Ankara. However, the whereabouts of the military chief of staff remains unknown. Istanbul’s main Ataturk airport is now under army control, and flights – which had been interrupted for some hours – are due to resume from 03:00 GMT. Soldiers were earlier seen at strategic points in Istanbul, with jets flying low in Ankara. Two large explosion were also heard near Istanbul’s central Taksim Square. There were also reports of blasts at parliament building in Ankara. MPs were believed to be hiding in shelters. There are unconfirmed reports that some people have died in clashes. Broadcaster CNN Turk was reportedly taken over by soldiers, and its live broadcast was cut. In Washington, US President Barack Obama urged all parties in Turkey to support the “democratically elected government”. Nato called for “full respect” for Turkey’s democratic institutions.