political news

Archaeologists believe the ship was used as filler material to extend lower Manhattan into the Hudson River.

Archaeologist Molly McDonald hopes the ship, discovered on Tuesday, would be retrieved by the end of the day.

It is unclear if any large portions of the hull would remain intact, but Ms McDonald hopes to salvage some timbers.

"We're mostly clearing it by hand because it's kind of fragile," said Ms McDonald.

Ms McDonald and archaeologist Michael Pappalardo were at the site when the ship was discovered on Tuesday morning by workers building the new World Trade Center.

The two archaeologists work for AKRF, a firm hired to document artefacts discovered at the site of the 11 September 2001 attacks.

"We noticed curved timbers that a back hoe brought up," Ms McDonald said.

She added: "We quickly found the rib of a vessel and continued to clear it away and expose the hull over the last two days."

A large anchor was also found a few metres away from the hull, but archaeologists are unsure if it belongs to the vessel.

Archaeologists are now quickly working to record and analyze the ship before the wood begins to deteriorate because of exposure to the air.

President Obama says he has had what he called blunt talks with President Hu Jintao of China on the issue of the sinking - allegedly by North Korea - of a South Korean warship in March.

Mr Obama said he understood China's position of restraint as regards its neighbour.

But, he said, restraint was different to what he called "willful blindness".

North Korea has denied it was responsible for the sinking of the warship, the Cheonan.

Its foreign ministry has instead issued a statement saying the country would be preparing a new level of nuclear deterrent in response to US "hostility".

The United States wants China to support a resolution in the United Nations Security Council condemning North Korea.

Speaking at a press conference after the G20 meeting Mr Obama said he hoped President Hu would recognise the incident was an example of North Korea overstepping the line.

International investigators said the South Korean warship had been hit by a North Korean torpedo.

The Japanese Prime Minister Naoto Kan told reporters he has also asked China to issue a "necessary" condemnation of the sinking.

On Saturday, the US president had said North Korea must be "held to account" for the sinking of a South Korean warship.

He said he stood with South Korean leader Lee Myung-Bak, and condemned Pyongyang's "irresponsible behaviour".

The G8 leaders had issued a statement condemning the attack on 26 March that caused the loss of 46 lives.

The statement also expressed the G8 leaders' "gravest concern that the nuclear test and missile activities carried out by the Democratic Peoples' Republic of Korea have further generated increased tension in the region and beyond, and that there continues to exist a clear threat to international peace and security."

North Korea said on Sunday that the investigation which blamed it for the ship attack was all "fabrication and lies".