Seoul, Jan 12 (TIWN) North Korea said Wednesday it has successfully conducted the "final" test-firing of a new hypersonic missile a day earlier as its leader Kim Jong-un called for the strengthening of the country's "strategic military muscle both in quality and quantity" during an on-site inspection.

"The superior maneuverability of the hypersonic glide vehicle was more strikingly verified through the final test-fire," the Korean Central News Agency (KCNA) said. "The test-fire was aimed at the final verification of overall technical specifications of the developed hypersonic weapon system," reported Yonhap News Agency.  The hypersonic glide vehicle demonstrated "glide jump flight", "corkscrew maneuvering" and hit "the set target in waters 1,000 km off," it added with regard to Tuesday's launch. It marked the third known test-firing of what the secretive North claims to be a hypersonic missile, with the second one conducted last week.