Story highlights U.S. official: Launches using ballistic missile technology violate U.N. resolutions

North Korea said it tested a ballistic missile launched from a submarine

South Korean defense ministry official: North Korea fired 3 ship-to-ship missiles

Pyongyang, North Korea (CNN) North Korea has carried out a successful underwater test of a ballistic missile, the North Korean state news agency reported.

Leader Kim Jong Un oversaw the test himself, KCNA reported on Saturday (Friday evening, ET).

A submarine launched the missile at a location far from the North Korean mainland, according to the news agency.

Kim praised the test as a "miraculous achievement" and said his country is capable of producing this type of missile. This missile was a "time bomb which will go off on the backs of our hostile enemies at any time," he added, the KCNA report said.

North Korean leader Kim Jong Un praised the test as a "miraculous achievement," according to KCNA.

Such rhetoric, while alarming on its face, is not unlike Kim's pronouncements after missile tests in the past.

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