A group of divers in the Baltic Sea have found the wreck of a Soviet submarine that sank in 1940, taking 50 crew members with it.
Zetterstrom says all crew members died when the vessel exploded in 1940, probably after hitting a mine.
Markus Lindholm, an Aland-based maritime archaeology expert who studied pictures of the wreck, says the claim appears to be true. He says only one submarine was known to have sunk in the area.
Zetterstrom says divers found the wreck in February after a decade-long search but only announced it Tuesday because they wanted to confirm the identity of the submarine.