BEIJING - North Korean leader Kim Jong Un has inspected an artillery fire competition between Korean People's Army Corps units, official media reported Friday.

Kim's Thursday engagement, reported by the Korean Central News Agency, marked the fourth time he has guided artillery fire training known to have occurred since late February.

The Friday edition of the Rodong Sinmun, the newspaper of the ruling Workers' Party of Korea, ran photos showing multiple shells being fired. There appear to have been no ballistic missile fired at the time.

[Photo courtesy of Korea Media]

Kim stressed the need to frequently organize artillery drills, the KCNA report said.

Kim inspected military artillery drills on Feb. 28, and March 2 and Monday, according to North Korean media. During the drills on March 2 and Monday, units of the Korean People's Army fired projectiles that countries such as Japan believe were short-range ballistic missiles toward the Sea of Japan.

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