Pukguksong-1 (KN-11)

The Pukguksong-1 (Korean: Polaris-1, US designation: KN-11) is a two-stage, solid-fueled North Korean submarine-launched ballistic missile (SLBM). The missile bears an external resemblance to the Soviet-designed R-27/SS-N-6 Serb SLBM.1 North Korea has conducted five flight tests of the KN-11, and well as numerous other tests of the missile’s ejection system and other subsystems.

CSIS Missile Threat: https://missilethreat.csis.org/missile/kn-11/