Updated at 5:50 a.m. ET:
Reuters reports that teams are painstakingly checking thousands of rooms on the Costa Concordia for the nearly 40 people still missing after the huge vessels foundered and keeled over with more than 4,000 n board, killing at least three and injuring 70.
The task is akin to searching a small town - but one tilted on its side, and largely in darkness and submerged in freezing water. Scores of divers were taking part.
Just after dawn on Sunday, a team made voice contact with a third survivor still on board the ship. "We are doing the impossible to reach this person," coastguard spokesman Luciano Nicastro told Italian television.
After midnight, rescue workers had found the two South Koreans still alive in a cabin, after locating them from several decks above, and brought them ashore, looking dazed but unharmed.
The captain of the luxury 114,500-tonne ship, Francesco Schettino, was under arrest and accused of multiple manslaughter, causing a shipwreck and abandoning ship, Italian police said.
At least three people are dead and at least two injured people are reported in grave condition after a luxury cruise ship ran aground off the coast of Tuscany.
The Italian coast guard says there's concern there may be more deaths.
Officials say a painstaking search of the ship's interior is under way to see if anyone might have been trapped inside. Some crew members remained aboard the listing ship to help.
The grounding gashed the hull of the ship carrying about 4,200 people.
Officials say helicopters are evacuating some people still aboard the Costa Concordia liner near the Tuscan island of Giglio.