Never surrender...Famous Nazi U-boat scuttled by its crew

A GERMAN U-boat that sank 61 civilian ships during the First World War was likely scuttled "in an act of defiance" while being transferred to the Royal Navy after the Armistice.

- Sarah Ward

The UC-71 descended to the off the deep German archipelago of Heligoland in the North Sea on February 20 1919. No lives were lost and the sub's hatches were open, leading to speculation that it had been sunk by its own crew.

Officially it was downed by bad weather and high waves.