North Korean leader Kim Jong Un oversaw a test of a solid-fuel engine designed for intercontinental ballistic missiles, state media reported on Tuesday.

The country's Missile Administration "conducted another ground jet test of high-thrust solid-fuel engine using the composite carbon fiber material on September 8," the official Korean Central News Agency (KCNA) reported in an English dispatch on Tuesday.

"The respected Comrade Kim Jong Un oversaw the important test," it said.

It was the "ninth ground jet test" and "the last one in the development process," according to KCNA.

The news agency quoted Kim as saying that the new rocket engine "heralds a significant change in expanding and strengthening the nuclear strategic forces" of North Korea.

Images carried by state media showed Kim l

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