Pyongyang rejects Seoul's hypersonic test claims, justifies own arms buildup

North Korea renewed its attack on South Korea's recent hypersonic weapon test Friday, rejecting Seoul's explanation that advanced materials prevented the weapon from showing burn marks and using the South's weapons development to justify its own arms buildup. The latest dispute comes as the two Koreas offer conflicting assessments of the technology demonstrated in South Korea's first test launch of a hypersonic glide vehicle (HGV) on Oct. 8. North Korea initially questioned the test's success, arguing the vehicle must have failed to reach hypersonic speeds because photos showed no soot on its surface. Seoul's defense ministry countered that the vehicle was equipped with advanced thermal-protection technology and that visible soot was not necessarily expected during hypersonic flight. On Friday, Pyongyang fired back at the defense, calling Seoul's explanation "far-fetched." "It's not a matter of heat-resistant materials or thermal protection performance," Kim Jong-sik, a vice department head of the Workers' Party Central Committee, said in a statement carried by the Korean Central News Ag