Italian officials say divers have pulled out a woman's body from the capsized Costa Concordia, raising to 13 the number of dead in the Jan. 13 accident off the Tuscan island of Giglio.

Civil protection official Francesca Maffini told reporters the victim was wearing a life vest and was found in the rear of a submerged portion of a ship by a team of fire department divers. The unidentified body was being removed from the ship. Before the body was found Sunday afternoon, there were at least 20 people missing. Earlier, Italian officials said it was possible that unregistered passengers had been aboard when the Concordia struck a reef off Gigilio.

Only eight of the 13 bodies so far found have been identified.