North Korean leader Kim Jong Un oversaw a test of short-range ballistic missiles and long-range artillery in a demonstration of Pyongyang's nuclear counterstrike capabilities, state-run media said Friday.

North Korea says its leader Kim Jong Un oversaw tests of short-range ballistic missile systems that simulated nuclear strikes against US and South Korean forces. Kim told state media KCNA on Friday about the need to strengthen the role of his nuclear forces in both deterring and fighting war.

North Korean leader Kim Jong Un supervised missile tests that simulated nuclear counterstrikes against U.S. and South Korean forces, state media said on Friday. The tests of short-range ballistic missile systems from North Korea's eastern coastal city of Wonsan were detected by South Korea's military the day before.