The German sub is part of what's known as Hitler's lost fleet‚ one of six U-boats sent to attack the Russian Black Sea Fleet in 1942.

The German U-boat, known as U-23, has been lying at the sea bed of Turkey's coast since 1944.
The German U-boat, known as U-23, has been lying at the sea bed of Turkey's coast since 1944. (AA)

The Turkish Navy has helped film an infamous sunken World War II submarine. 

The German sub is part of what's known as Hitler's lost fleet‚ one of six U-boats sent to attack the Russian Black Sea Fleet in 1942.

They were part of Operation Barbarossa - Nazi Germany's invasion of the Soviet Union. 

TRT World's Shoaib Hasan in Ankara reports on a remarkable story from the last world war.