North Korea has fired various types of short-range ballistic missiles into its eastern sea, according to South Korea's military, which was analyzing whether the tests were linked to the North’s weapons exports to Russia amid the prolonged aggression in Ukraine.

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 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.