Hundreds of people lined the banks of the Mississippi river near New Orleans as the USS New York sailed through the fog, local media reported.

Its bow stem contains 7.5 tonnes of steel salvaged from the rubble following the terrorist attacks of September 11, 2001.

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The 684-foot longship’s main mission is to transport and deploy combat and support elements of Marine expeditionary units, the US Navy said.

It will carry approximately 720 troops and can deploy helicopters and other aircraft from its massive deck.

Two other ships – the Arlington and Somerset – are being built in honour of the victims of the attacks on the Pentagon and United Flight 93 and are also incorporating materials salvaged from those sites.

http://www.telegraph.co.uk/news/worldnews/northamerica/usa/6319751/Ship-built-of-World-Trade-Centre-wreckage-sets-sail-for-New-York.html