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Underwater footage of HMS Coventry emerges

24 May 2012 Last updated at 22:07 BST

The 30th anniversary of the sinking of HMS Coventry during the Falklands conflict will be marked at a ceremony in the city on Friday.

The wreck is officially a war grave and the BBC has obtained previously unseen film of the destroyer in her final resting place.

Kevin Reide has this exclusive report.