Leaders of Romania, Serbia, Greece, Bulgaria meet for economic cooperation

Greek Prime Minister Alexis Tsipras attends a joint press conference with leaders of Romania, Bulgaria and Serbia, at Victoria Palace in Bucharest, Romania, April 24, 2018. The leaders of Romania, Bulgaria, Greece and Serbia met here on Tuesday, discussing economic cooperation, concrete projects and the 16+1 cooperation format promoted by China. (Xinhua/Cristian Cristel)