Stranded Iranian migrants on hunger strike, some with their lips sewn together, sit on rail tracks at the borderline between Greece and Macedonia near the Greek village of Idomeni November 25, 2015. European countries are stretched to their limits in the refugee crisis and cannot take in any more new arrivals, French Prime Minister Manuel Valls was quoted as saying in a German newspaper on Wednesday. REUTERS/Yannis Behrakis TPX IMAGES OF THE DAY