North Korea rejects South Korea’s explanation for its first hypersonic glide vehicle (HGV) test, disputing claims that the weapon reached hypersonic speeds. North Korean officials cite photos suggesting the HGV’s outside surface was “not stained with any soot,” arguing this indicates the vehicle did not achieve hypersonic flight. South Korea’s defense ministry counters that visible soot is not necessarily expected during hypersonic flight and that the HGV is fitted with advanced thermal-protection technology.
The dispute escalates into broader accusations about motives and capabilities. Pyongyang also criticizes South Korea’s account as “far-fetched,” and links the disagreement to justification for its own arms buildup. South Korea says it plans to further develop technologies involved in the HGV weaponization process, while Seoul’s initial disclosure of the test comes amid heightened inter-Korean tensions. Different outlets report the same core exchange: competing interpretations of a single test launch conducted on Oct. 8 and the political use both sides make of the technology demonstrated.
