Japanese Coast Guard video of ship
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New footage: Japan tsunami strikes at sea

19 March 2011 Last updated at 19:45 GMT

New footage of the Japanese tsunami's waves has been released by the country's coast guard.

Filmed 5 km (3 miles) off the north-eastern coast of Japan, the images show the waves rolling towards the Matsushima coast guard vessel. The captain steers the boat directly into the waves and the ship crests the enormous swell.

Footage courtesy of the Japanese Coast Guard