Seoul [South Korea], January 15 (ANI): North Korea on Monday said it successfully test-fired a solid-fuel intermediate-range ballistic missile (IRBM) carrying a hypersonic warhead on Sunday, Yonhap News Agency reported. In a bid to verify the warhead’s gliding and manoeuvring capabilities and the reliability of newly developed multi-stage high-thrust solid-fuel engines, the missile loaded with a hypersonic manoeuvrable controlled warhead was launched on Sunday afternoon, Yonhap News Agency reported, citing Korean Central News Agency (KCNA). It did not reveal the flight distance and other detai…