Istanbul police on Sunday detained the editor-in-chief of the Turkish edition of Sputnik, the Russian website said, amid growing tensions between Ankara and Moscow. "Sputnik Turkey's editor-in-chief Mahir Boztepe has been detained. He is being taken to the Istanbul police headquarters," the website said. Margarita Simonyan, editor-in-chief of Rossia Sevodnia, which owns Sputnik, confirmed the detention on Twitter. raz/jv