North Korean leader Kim Jong Un led a “firepower strike drill” of “long-range artillery sub-units of the Korean People’s Army” (KPA) on Monday, state media reported Tuesday morning.

Images published on the front page of the Party daily Rodong Sinmun and in the Korean Central News Agency (KCNA) showed at least two types of multiple launch rocket systems (MLRS) firing at island targets during the drill, with Kim Jong Un observing from a distance.

“The unyielding revolutionary determination — to deliver a strike which destroys the enemy with the great Workers’ Party of Korea’s (WPK) head-on battle to break through