Japan's top government spokesman says there is no direct threat to Japan following North Korea's latest test-launch of three short-range missiles.

Yoshihide Suga told reporters the missiles early Saturday did not fall into Japan's territorial waters or the coastal 200-mile economic zone. Japan has previously deployed missile interceptors after North Korea threatened to fire projectiles over Japan toward the US territory of Guam.

In the latest launch, the US Pacific Command says two of the North's missiles failed in flight after an unspecified distance, and another appeared to have blown up immediately. (AP)