(Bloomberg) -- North Korean leader Kim Jong Un oversaw a test of hypersonic missiles on Jan. 4, state media KCNA reported. Kim emphasized the need to further improve the country’s offensive weapons system and its overall nuclear deterrence, the report said. Kim tends to oversee what he considers significant weapons test.

North Korea said Monday that leader Kim Jong Un observed test-flights of hypersonic missiles and underscored the need to bolster the country’s nuclear war deterrent, as the country dials up weapons di...

On Monday, the Korean Central News Agency (KCNA) quoted Kim as saying the test showed "the readiness of the DPRK's nuclear forces", referring to North Korea by its official name.