Turkey’s leaders said they have largely quelled an attempted military coup, after army officers claimed to have seized power in the country on Friday night. The coup appeared to crumble in the early hours of Saturday after crowds answered president Tayyip Erdogan’s earlier call to take to the streets to support him. Mr Erdogan, who had been holidaying on the southwest coast when the coup was launched by a faction in the armed forces, flew into Istanbul before dawn on Saturday and was shown on TV appearing among a crowd of supporters outside Ataturk Airport. The uprising was an “act of treason”, and those responsible would pay a heavy price, he later told reporters at a hastily arranged news...