North Korea said Wednesday that the missile it launched over Japan on Tuesday was an intermediate-range Hwasong-12 and that the drill — meant to counter U.S.-South Korean war games — had involved military units "tasked with striking the bases" of American forces in the Pacific.

More such drills are in store for the U.S. and its allies, the North said.

The nuclear-armed North sent the missile flying over Hokkaido on Tuesday morning, the first unannounced launch over Japan of a missile designed to carry a nuclear payload. It flew more than 2,700 km before plunging into the Pacific Ocean about 1,180 km east of Hokkaido's Cape Erimo.