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.

SEOUL (Reuters) - North Korean leader Kim Jong Un supervised a test of a short-range ballistic missile and long-range artillery on Thursday and stressed the importance of combat readiness of the country's nuclear forces, state media reported on Friday.

Kim Jong Un supervised missile tests simulating nuclear counterattacks against the USA and South Korea, North Korean state media reported on Friday. The day before, Seoul reported detecting the launch of several types of short-range missiles by the North.