K-141 Kursk was a Russian nuclear cruise missile submarine which was lost with all its crew (118 people) when it sank in the Barents Sea on August 12, 2000.
The submarine sank to a depth of 108 metres, approximately 135km off Severomorsk, at 69°40′N, 37°35′E.
Kursk was eventually raised from her grave by a Dutch team using the barge Giant 4 in 2001.