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Journey to the Titanic wreck site to mark anniversary

14 April 2012 Last updated at 09:53 BST

It has been 100 years since the Titanic hit an iceberg and sank in North Atlantic, with the loss of more than 1,500 lives.

Now, in a special voyage to mark the anniversary, relatives of some of those who perished are travelling to the site of the wreck.

John Kay reports from aboard the MS Balmoral.