Coast Guard cutter sinks tsunami 'ghost ship'

Updated at 11:30 p.m. ET: The Coast Guard says the fishing vessel set adrift by the tsunami in Japan has sunk in the Gulf of Alaska after a cutter fired at it.

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Petty Officer David Moseley told msnbc.com that the vessel caught fire and took on water after the Coast Guard Cutter Anacapa fired its 25mm cannon at the derelict ship on Thursday, aiming to sink what it called a threat to shipping.

Citing a Coast Guard spokesman, the Associated Press reported the firing began after a brief delay caused by a Canadian ship that wanted to salvage the Ryou-un Maru -- but then quickly found it it wasn't able to tow it back to shore.

Wadlow said the drifting vessel makes shipping in the area extremely dangerous. "There's no crew on board, it doesn't have any light ...  and it's in a high volume shipping lane," he noted.

The fishing boat, which was in port waiting to be scrapped when the tsunami took it out to sea, is far enough away that any fuel on board would not make it to shore, Wadlow added. The Coast Guard later elaborated that it appeared to be carrying little fuel since it was riding high in the water, the AP reported.

A Coast Guard C-130 was flying over the area to warn away any nearby ships for what is described as a "live fire exercise."

More photos of the Ryou-un Maru sinking

Dropping crews aboard the boat is too dangerous, Wadlow said, and "the owner no longer wants it."

But that didn't stop the Bernice C from trying to make some money off the rusty vessel.

Based in Petersburg, Alaska, the Anacapa arrived Wednesday night alongside the Ryou-un Maru, which entered U.S. waters on April 1. The ship was moored at a harbor in Hachinohe, Japan, when the earthquake and tsunami hit on March 11, 2011.

The vessel is the first large object to reach North America following the tsunami. Smaller objects have been found on U.S. coasts but much more debris is expected to make its way via currents to U.S. and Canadian beaches by 2014.

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