Taking the known death toll to 11, that left 24 people, including a number of German tourists, unaccounted for four days after the giant cruiser carrying 4,200 passengers and crew was ripped open by rocks off a Tuscan island.

Captain Francesco Schettino is in jail, blamed by his employer for risking thousands of lives and half a billion dollars of ship in a reckless display of bravado.

On Tuesday, rescuers used explosives to blast through the watery maze of luxury cabins, bars and spas, fast losing hope of finding anyone alive. Before the five bodies were found, those missing were 14 German, five Italian, four French and two American passengers and four crew from Italy, Peru, India and Hungary.

Schettino is accused of multiple manslaughter, causing a shipwreck by sailing too close to shore and abandoning ship before all his panicking passengers and frantic crew managed to scramble off.

Newspaper Corriere della Sera released what it said was a recording of ship-to-shore radio communications in which the enraged coastguards repeatedly order him back on board.

"Listen Schettino, perhaps you have saved yourself from the sea, but I will make you look very bad. I will make you pay for this. Dammit, go back on board!" one coastguard says.

Officials did not confirm the tape's origins but Corriere has good sources. Other shouts heard in the background added authenticity. Schettino's lawyer said he would not comment.

The owners of the 114,500-tonne vessel - by some measures the biggest passenger ship ever wrecked - accused their captain of causing the disaster by sharply deviating from the charted course. Investigators say he was within 150 metres of the shore.

He has denied the charges and was questioned by magistrates on Tuesday morning.

Aside from direct losses for Miami-based Carnival Corp, which controls the ship's operator Costa Cruises, bad publicity generated by images of the liner lying on its side in shallow water risks hurting the global market for luxury cruising and the credibility of claims for high-tech safety measures.

Three controlled blasts were detonated early on Tuesday morning to allow firefighters and scuba divers to enter inaccessible parts of the ship.

"Now we will have better access to the gathering points on the ship, where it seems there might be more chance of finding someone, dead or alive," said firefighters' spokesman Luca Cari.

"They will take micro-cameras in there, and we will be simultaneously looking at the few remaining dry areas and also the wet areas," he said. The weather improved slightly from Monday but seas were still choppy.

GIANT PLEASURE PALACE

The giant liner, a floating pleasure palace of bars, spas, giant state rooms and tennis courts slid a little on Monday, threatening to plunge 2,300 tonnes of fuel below the Mediterranean waters of the surrounding marine nature reserve.

This forced a brief suspension of rescue efforts, which were also halted during the night.

Hopes of finding more survivors are fast fading, more than three days after the 290-metre long ship rolled on its side with a long gash in its hull. The four missing crew are from Italy, Peru, India and Hungary. More than 1,000 employees on board included many catering staff and entertainers as well as seamen.

Most of the passengers and crew survived despite hours of chaos and confusion after the collision. The alarm was raised not by an SOS from the ship but mobile phone calls from passengers on board to Italian police on the mainland.

Video taken from a rescue helicopter in the early hours of Saturday, using a night vision camera, showed an extraordinary scene of dozens of passengers being gingerly lowered on ropes down the upturned hull of the ship into rescue boats.

The wreck, with a long gash below the waterline, looms over the normally tranquil island of Giglio.

The ship foundered after striking a rock just as dinner was being served on Friday night. The owners have said the captain swung inshore to "make a bow" to the islanders, who included a retired Italian admiral.

Senior firefighter Luciano Roncalli told Reuters that all the unsubmerged areas of the liner had been searched.

Environment Minister Corrado Clini said he would declare a state of emergency because of the risk that the ship's fuel would leak into the pristine Tuscan Archipelago National Park. No fuel spillage has been detected so far, he said.

Clini said on Tuesday morning that he had given the salvage company until Wednesday to come up with a plan to remove the fuel and 10 days with a plan to remove the ship.

SKIPPER DENIES CHARGES

"You don't have to be a Nobel prize winner to understand that a ship of that size should stay far from the coast," Clini said on television on Tuesday morning.

Schettino's lawyer issued a statement saying the skipper was "broken up, troubled and saddened by the loss of life". But he believed he had saved many lives by carrying out a difficult emergency manoeuvre with anchors after the accident, which turned the ship closer to the shore.

The father of the ship's head waiter told Reuters that his son had telephoned him before the accident to say the crew would salute him by blowing the ship's whistle as they passed close by Giglio, where both the waiter, Antonello Tievoli, and his 82-year-old father Giuseppe live.

Costa Cruises chief executive Pier Luigi Foschi on Monday blamed errors by Schettino for the disaster. He told a news conference the company would provide its captain with any assistance he required. "But we need to acknowledge the facts and we cannot deny human error," he added.

Foschi said company vessels were forbidden to come closer than 500 metres to the Giglio coast.

Schettino denies being too close to the coast and says the rock he hit was not marked on charts.

The ship is resting in about 20 metres (60 feet) of water but could go down by as much as 130 metres if it shifts free from the rocks.

(Additional reporting by Silvia Ognibene, Silvia Aloisi and Kate Hudson, Writing by Barry Moody and Philip Pullella; Editing by Alastair Macdonald)

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