<Tr> <Td> K - 27 K - 141 Kursk K - 159 The location of sunken nuclear submarines in the Arctic </Td> </Tr> <Ul> <Li> K - 27: The only Project 645 submarine (a variant of the Project 627 November - class submarine, with liquid metal cooled reactors), K - 27 was decommissioned in 1979 . On September 6, 1982, the Soviet Navy scuttled it in shallow water (108 ft (33 m)) in the Kara Sea after sealing the reactor compartment . This sinking in shallow water was contrary to the recommendation of the International Atomic Energy Agency (IAEA). </Li> <Li> K - 8: A Project 627 November - class submarine was lost on April 11, 1970 while being towed in rough seas following a fire on board . The submarine's crew was initially evacuated to a surface vessel, but 52 re-boarded the surfaced submarine for a towing operation . All 52 sailors died when the submarine flooded and sank, for total losses of 60 crew when counting the 8 who perished on April 8 in the initial fire . Location: Bay of Biscay, 490 kilometres (260 nmi) northwest of Spain in the North Atlantic Ocean . </Li> <Li> K - 219: A Project 667A Yankee I - class sub was damaged by a fire in a missile tube and explosion on October 3, 1986 . It then sank suddenly while being towed after all surviving crewmen had transferred off . Six crew members were killed . Location: 950 kilometres (510 nmi) east of Bermuda in the North Atlantic Ocean . </Li> <Li> K - 278 Komsomolets: The only Mike - class sub built sank due to a raging fire April 7, 1989 . All but five crewmen evacuated prior to sinking . A total of 42 crew died, many from smoke inhalation and exposure to the cold waters of the Barents Sea, while 27 crew members survived . </Li> <Li> K - 429: A Project 670A Charlie I - class sub sank twice, once at sea from flooding during a test dive, then two years later, from flooding at her moorings . A total of 16 crew lost their lives in the first incident . Raised after each sinking, K - 429 was decommissioned two years after second incident . </Li> </Ul> <Li> K - 27: The only Project 645 submarine (a variant of the Project 627 November - class submarine, with liquid metal cooled reactors), K - 27 was decommissioned in 1979 . On September 6, 1982, the Soviet Navy scuttled it in shallow water (108 ft (33 m)) in the Kara Sea after sealing the reactor compartment . This sinking in shallow water was contrary to the recommendation of the International Atomic Energy Agency (IAEA). </Li> <Li> K - 8: A Project 627 November - class submarine was lost on April 11, 1970 while being towed in rough seas following a fire on board . The submarine's crew was initially evacuated to a surface vessel, but 52 re-boarded the surfaced submarine for a towing operation . All 52 sailors died when the submarine flooded and sank, for total losses of 60 crew when counting the 8 who perished on April 8 in the initial fire . Location: Bay of Biscay, 490 kilometres (260 nmi) northwest of Spain in the North Atlantic Ocean . </Li>

How many us submarines are in the ocean