Turkish President Recep Tayyip Erdogan and U.S. President Barack Obama have started their bilateral meeting on the sidelines of the G20 Summit in southern Antalya province. Anadolu Agency, the event's main photography distributor, also took photographs of both leaders before their meeting Sunday. The meeting was taking place soon after Erdogan made his opening speech at the summit. During the bilateral meeting, Erdogan and Obama are expected to discuss a host of issues of global importance. Turkey is hosting leaders of 20 major economies in Antalya for the 10th G20 summit, which will discuss the world's biggest political and security crises, including Syria and the mass migration of refugees.