ORESTIADA, March 2, 2020 (Xinhua) -- Migrants and refugees are seen behind a wired fence at the borderline between Greece and Turkey near the closed Kastanies border crossing in northeastern Greece, where thousands gathered near the Evros River in an attempt to cross into Greece, on March 2, 2020. Greece on Sunday decided to increase the level of deterrence at its borders to the maximum, as the country is facing a forthcoming increased refugee and migrant influx recently. EYEVINE / LEHTIKUVA / DIMITRIS TOSIDIS