during the winter of 1340, abu hasan gathered his fleet: 60 war galleys and 250 other ships concentrated at ceuta under command of muhammad ibn ali al-azafi. they landed an army at gibraltar, and on 8 april 1340 44 muslim galleys and 35 "leños" met the castilian fleet of 44 galleys and 7 "naos", under admiral alfonso jofre de tenorio, in the straits. al-azafi surrounded and destroyed the castilian fleet; tenorio himself lost his life, 28 galleys and seven "naos" were captured and only 11 of his galleys managed to reach cartagena. five reached tarifa.