North Korea's state Rodong Sinmum newspaper has released a batch of photos of Kim observing the latest launch of the Hwasong-12 ballistic missile with his own eyes.
The projectile flew over Japan before falling into the Pacific Ocean, which has happened for the first time with Kim at the helm.
The North Korean leader said the launch comprised "the first step of the military operation of the [Korean People's Army] in the Pacific and a meaningful prelude to containing Guam," according to to local KCNA agency.
North Korea has test-launched dozens of ballistic missiles since Kim Jong-un took power and had conducted two nuclear tests in 2016. Earlier this month, it was revealed that some Japanese and US intelligence analysts believe Pyongyang may already be able to attach nuclear payloads to ballistic missiles.