Missile hatch of the Soviet Yankee-class submarine K-219 after the detonation of one of its R-27U missiles while submerged. The detonation and subsequent fire caused the sinking of the submarine on October 3, 1986, about 1000 km east of the Bermudas. K-219 was a Project 667A Navaga-class ballistic missile submarine (NATO reporting name Yankee I) of the Soviet Navy. It carried 16 R-27U liquid-fuel missiles.