PhotoSEOUL, South Korea ? North Korea?s latest test of a rocket engine showed that the country was making ?meaningful progress? in trying to build more powerful rockets and missiles, South Korean officials said on Monday.
Lee Jin-woo, a spokesman at the Defense Ministry, said it showed that the North was developing a more sophisticated rocket engine.
In September, North Korea conducted the ground test of what it called a new long-range rocket engine in Tongchang-ri, days after it conducted its fifth underground nuclear test.
?Through this test, it is found that engine function has made meaningful progress,? Mr. Lee said during a news briefing, without divulging further details.
The model that the North tested included a cluster consisting of a main engine and four vernier thrusters ? smaller engines used to adjust the craft?s velocity and stability.
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