North Korea tests solid-fuel missile engine as Kim boosts threat to US mainland

close Video JUST IN: North Korea tests NEW rocket launch system North Korea says it successfully tested a new missile launch system. NEWYou can now listen to Fox News articles! Hören Sie sich diesen Artikel an 3 Min North Korean dictator Kim Jong Un oversaw a test of a new high-thrust solid-fuel rocket engine, according to state media, working on weapons capable of striking the U.S. mainland. The test, reported Sunday by KCNA, involved an engine made with carbon-fiber materials and was described as part of a new five-year defense plan to upgrade the country’s "strategic strike" capabilities. Kim said the test had "great significance in putting the country’s strategic military muscle on the highest level," according to KCNA. The engine reportedly produced 2,500 kilonewtons of thrust, higher than a similar engine it tested last year. Analysts say such engines could support more mobile or compact long-range missiles. NORTH KOREAN DICTATOR SAYS GOVERNMENT WILL KEEP CEMENTING NATION'S 'IRREVERSIBLE STATUS AS A NUCLEAR POWER' This picture released by North Korea's official Korean Central News Agency on Sunday shows a ground ejection test of what KCNA says is a high-output solid-fuel engine using carbon fiber composite materials. (KCNA) North Korea’s report on the latest test could be "bluffing" as it did not disclose some key information like the engine’s total combustion time, said Lee Choon Geun, an honorary research fellow at South Korea’s Science and Technology Policy Institute. Solid-fuel systems are significant because they can be launched more quickly and with less warning than older liquid-fuel missiles, making them harder to detect and potentially more survivable in combat. Pyongyang still faces major technical barriers before fielding a fully reliable intercontinental ballistic missile, especially ensuring a warhead can survive atmospheric reentry. Kim Jong Un CALLS South Korea ‘MOST HOSTILE ENEMY,’ SAYS NORTH COULD ‘COMPLETELY DESTROY’ IT In this photo released by North Korea's official Korean Central News Agency on Sunday, North Korea's Kim Jong Un observes a ground ejection test in North Korea. (KCNA) Kim’s latest military activities also included inspections of special operations training and tests of a new main battle tank, underscoring a broader push to modernize both North Korea’s missile program and conventional forces, according to KCNA. Kim claimed the tank’s protection system could defeat nearly all existing anti-tank weapons, though such assertions could not be independently verified, Reuters reported. The developments fit a wider pattern of stepped-up military activity by Pyongyang. Since the collapse of Kim’s diplomacy with President Donald Trump in 2019, North Korea has accelerated work on nuclear and missile systems despite sanctions, while keeping open the possibility of talks if Washington drops demands for denuclearization first. Kim Jong Un APPEARS WITH TEENAGE DAUGHTER AT LIVE-FIRE ROCKET TEST IN North Korea North Korea's Kim Jong Un visits a special operations training base in North Korea on Sunday, according to this picture released by North Korea's official Korean Central News Agency. (KCNA) At a rare ruling party congress held in February, Kim unveiled a new five-year plan that reaffirmed continued development of nuclear weapons, while calling for a broad upgrade of the country’s military capabilities. Analysts and regional governments also pointed to new tank and combined-arms drills as part of Pyongyang’s effort to adapt its military doctrine to modern warfare, drawing lessons from recent conflicts and emphasizing integration across ground and missile forces. South Korea and the United States say they are closely monitoring North Korea’s weapons developments. The Associated Press and Reuters contributed to this report. Eric Mack is a writer for Fox News Digital covering breaking news. Fox News' Antisemitism Exposed" newsletter brings you stories on the rising anti-Jewish prejudice across the U.S. and the world." By entering your email and clicking the Subscribe button, you agree to the Fox News and Terms of Use, and agree to receive content and promotional communications from Fox News. You understand that you can opt-out at any time. You've successfully subscribed to this newsletter!