African immigrants wave as they arrive on a rescue ship at the southern Spanish port of Tarifa, near Cadiz, southern Spain August 12, 2014. Spanish emergency services picked up 920 immigrants travelling in about 81 rafts across the Strait of Gibraltar on Tuesday and 227 from the same stretch of water the day before, a spokesman for the Spanish Red Cross said. REUTERS/Jon Nazca (SPAIN - Tags: SOCIETY IMMIGRATION)