Sonar scan reveals submarine-shaped object in River Foyle bed

An investigation is under way in Derry after a sonar scan revealed a submarine-shaped object buried in the bed of the River Foyle.

The discovery has sparked speculation that it might be a German U-boat from World War Two.

The image was captured by Mallow Search and Rescue who are often called upon during search operations.

Mallow Search and Rescue Chairman, John Wolf says they hope to learn more when they perform a second scan of the river bed in the coming days.....