Images of WW2 US ships sunk off the Devon coast released

Sonar images have been released to the BBC of two American ships that were sunk during a secret D-Day operation codenamed Exercise Tiger.

A marine robot captured the first high-definition images of the US ships off the Devon coast.

The mission was conducted by US underwater robotics company, Hydroid, to collect data from the wreckage site.

The data showed both US vessels were about 50m (164ft) below the surface of the water.