evidence: Moroccan police have prevented hundreds of migrants from crossing into Ceuta after dozens manged earlier on Sunday to cross the first border fence between Morocco and the Spanish enclave. [...] The twin Spanish enclaves of Ceuta and Melilla are the only land borders between Africa and the European Union and both have experienced occasional mass waves of migrants trying to cross the border to reach the EU. [...] The Moroccan interior ministry said that in August, authorities blocked more than 11,300 attempts to cross into Ceuta and 3,300 to Melilla.