Staff at a polling station in Istanbul count votes in the second round runoff of Turkey's presidential election. Polls on Sunday showed a close vote, with incumbent president, Recep Tayyip Erdogan, favourite to extend his 20-year rule until 2028. Turkey's longest-serving leader defied critics by emerging from the election's first round on May 14 with a comfortable lead against secular challenger Kemal Kilicdaroglu. COMPLETES EN_33GF8LY IMAGES