A Turkish army tank drives towards to the border in Karkamis on the Turkish-Syrian border in the southeastern Gaziantep province, Turkey, August 25, 2016. REUTERS/Umit Bektas

A Turkish army tank drives towards to the border in Karkamis on the Turkish-Syrian border in the southeastern Gaziantep province, Turkey, August 25, 2016. REUTERS/Umit Bektas

A Turkish army tank drives towards to the border in Karkamis on the Turkish-Syrian border in the southeastern Gaziantep province, Turkey, August 25, 2016. REUTERS/Umit Bektas

August 25, 2016 4:05 AM (UTC+8)