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Tsunami dock washed up in Oregon

7 June 2012 Last updated at 07:25 BST

A huge metal dock that was swept away by last year's tsunami in Japan has washed ashore in the US state of Oregon.

Japanese consulate officials say it was one of four that broke loose from the port of Misawa and drifted thousands of miles across the Pacific ocean.

It was first spotted floating offshore on Monday and mistaken by several people for a barge.

Tim Allman reports.