The tests represented the fourth ballistic missile launch this month and the seventh this year. The tests involved five launches of upgraded short-range Hwasong-11 Ra surface-to-surface tactical ballistic missiles to evaluate the power and performance ​of the new warheads, KCNA said.

North Korea fired the missiles toward an island target zone about 136 km away, striking an area of roughly 13 hectares with what the report described as high density, ​demonstrating the system's capability for concentrated suppression strikes. KCNA said Kim expressed satisfaction with the test results.