Russian President Vladimir Putin shakes hands with Turkish President Tayyip Erdogan during a news conference following their meeting in St. Petersburg, Russia, August 9, 2016. REUTERS/Sergei Karpukhin

Russian President Vladimir Putin shakes hands with Turkish President Tayyip Erdogan during a news conference following their meeting in St. Petersburg, Russia, August 9, 2016. REUTERS/Sergei Karpukhin

Russian President Vladimir Putin shakes hands with Turkish President Tayyip Erdogan during a news conference following their meeting in St. Petersburg, Russia, August 9, 2016. REUTERS/Sergei Karpukhin

August 9, 2016 1:02 PM (UTC+8)