SEOUL, South Korea (AP) — North Korean leader Kim Jong Un supervised drills involving the firing of nuclear-capable multiple rocket launchers to show the country’s ability to carry out a preemptive attack on rival South Korea, state media reported Friday.

North Korea has simulated nuclear strikes on South Korea numerous times, but the latest drills came after animosities on the Korean Peninsula rose over North Korea’s recent failed spy satellite launch.

The North’s official Korean Central News Agency reported that the rocket firing drills were meant to demonstrate North Korea’s resolve not to hesitate in launching a preemptive strike on South Korea if threatened. It cited Kim as saying that the drills “will serve as an occasion in clearly showing what consequences our rivals will face if they provoke us.”

Photos showed Kim watching from a distance as at least 18 projectiles were launched.