North Korea says it fired solid-fuel hypersonic missile

North Korea says it successfully test-fired a new mid- to long-range solid-fuel hypersonic missile, North Korean newspaper Rodong Sinmun reported.

North Korea fired a suspected intermediate-range ballistic missile into the sea on Tuesday in a possible test of a new rocket using solid fuel, drawing swift condemnation from South Korea, Japan and the United States.

North Korean leader Kim Jong-un inspected the launch, Rodong Sinmun said, and lauded it as a strategic weapon that demonstrates the "absolute superiority" of North Korea's defence technology.

North Korea has "fully turned all tactical, operational, and strategic-grade missiles of different ranges into solid-fuel, with warhead control, and capable of nuclearisation", Kim said, according to Rodong Sinmun.

Hypersonic missiles are more difficult to intercept, while missiles with solid fuel can be moved and stored more easily, meaning they can be ready to launch at short notice.

Tuesday's test followed a ground test in late March of a solid-fuel engine for a new type of intermediate-range hypersonic missile.

Britain also condemned North Korea's latest ballistic missile launch, saying it breached multiple UN Security Council resolutions.

Meanwhile, a North Korean diplomatic delegation that visited China, Vietnam and Laos, as well as an economic delegation to Russia, have all returned home on Tuesday, KCNA said.