North Korea tests new solid-fuel engine for ICBMs SEOUL, September 9 (AJP) - North Korea tested a new high-thrust solid-fuel engine for intercontinental ballistic missiles (ICBMs), state media reported on Tuesday. According to the state-run Korean Central News Agency (KCNA), the reclusive country "conducted another ground jet test of a high-thrust solid-fuel engine using composite carbon fiber material," with its leader Kim Jong-un inspecting the test. KCNA said it was the "ninth ground jet test" of i September 9, 2025