EDIRNE, March 1, 2020 (Xinhua) -- Refugees and migrants gather near the border with Greece in the Turkish province of Edirne, March 1, 2020. Turkish President Recep Tayyip Erdogan said on Saturday that over 18,000 irregular migrants have so far crossed the Greek border after Turkey decided to open its border gates for the refugees. EYEVINE / LEHTIKUVA / XU SUHUI