Possible wreck of WW2 minisub located off Northern Ireland
Alex Attwood has banned diving at the site of the discovery near the Foyle Bridge. He said it was important that the wreck was not disturbed until it was positively identified. "The wreck is in quite low water, it is quite accessible," Mr Attwood told the BBC.
BBC Northern Ireland Environment Correspondent Mike McKimm said that was unlikely to be a full-sized submarine.
"A German U-boat, for example, would sit almost 10m high and would have been visible, even at high tide in the Foyle, which has an average depth of just over 5m."