Italian rescue service divers on Thursday resumed their search aboard the half-sunken Costa Concordia cruise liner, officials said, speaking six days after the ship ran aground according to dpa. The operation was a "a race against time" ahead of worsening weather. There was also the need to remove environmentally hazardous fuel from the vessel's tank, the officials said. "The ship is still precariously balanced on the shoal, so they(the divers) will have to move carefully," Luca Cari, a spokesman for Italy's firefighting services, which is responsible for the rescue efforts, told dpa. "Any shift in the Concordia's position would mean danger, and we would have to suspend operations again," he added. Slightly more than 20 of the 4,229 people on board at the time of the January 13 accident have yet to be accounted for, Italian officials said. The certified death toll stands at 11. Cari, said Thursday's search efforts would concentrate on the submerged half of the vessel's fourth bridge.
