Greece on Thursday said the only effective way to stem a flow of refugees and migrants to Europe from the Middle East and beyond was through Turkey, one of the first points of arrival for thousands after fleeing their homes. Greek Prime Minister Alexis Tsipras, attending an EU summit in Malta, said he would be discussing the matter with his Turkish counterpart Ahmet Davutoglou next week. "It is obvious that the only real chance of stopping these flows, these huge flows that no country can manage - let alone Greece which is in crisis ... is reaching an understanding with Turkey," Tsipras said.