In August 2000, the Kursk Oscar-class submarine was participating in Russia’s Summer-X exercise when tragedy prevailed. As part of the drill, Kursk was meant to launch a pair of training torpedoes.

The K-141 Kursk submarine K-141 Kursk was part of an 11-sub series of Project 949A Antey vessels, known by NATO as Oscar II. These are large, nuclear-powered oceanic submarines.