Lighthouse watchman last saw it 69 years ago before it sank near island of Market . The Soviet submarine S-2 had a crew of 46 and four passengers when it sank . A deal between Germany and the Soviets had put the Nordic nation within the Soviet `` sphere of influence , '' and Soviet troops had invaded Finland late in 1939 . A diver looks at the wreck of the SS Titanic in 1985. Sweden and Finland claim credit for sinking the submarine with mines .
Lighthouse watchman last saw it 69 years ago before it sank near island of Market . The Soviet submarine S-2 had a crew of 46 and four passengers when it sank . A diver looks at the wreck of the SS Titanic in 1985. Sweden and Finland claim credit for sinking the submarine with mines .