CORFU, Greece—Twelve people are still missing after a blaze swept through a ferry sailing from Greece to Italy early on Friday, Greek authorities said on Saturday, as firefighters battled for a second day to control the fire. Reuters live footage showed plumes of smoke pouring out of the Italian-flagged Euroferry Olympia ferry as firefighters from a nearby vessel sprayed water onto the burning vessel. A total of 241 passengers and 51 crew were on board when the blaze broke out on Friday and rescue vessels moved most of the 280 who were rescued to the nearby island of Corfu. The 183-meter (600-foot) ferry caught fire en route from Igoumenitsa, a port in Western Greece, to the Italian port of Brindisi, a nine-hour journey. The missing passengers are from Bulgaria, Greece, Turkey, and Lithuania, the Greek coastguard said. A prosecutor has launched an inquiry into the incident, Greek state television said. …