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.

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 Korea launched a series of short-range ballistic missiles during a nuclear counterstrike drill overseen by leader Kim Jong Un, in what state media said was a response to recent nuclear exercises by the United States and South Korea.