North Korea conducted tests of an upgraded long-range cruise missile and a warhead of a tactical guided missile this week, as leader Kim Jong Un visited a munitions factory producing a "major weapon system," state media KCNA said on Friday.

Axar.az reports that tension has been simmering over North Korea's series of six weapons tests in 2022, among the largest number of missile launches it has made in a month. The launches have triggered international condemnation and a new sanctions push from the United States.

An update to a long-range cruise missile system was tested on Tuesday, and another test was held to confirm the power of a conventional warhead for a surface-to-surface tactical guided missile on Thursday, KCNA said.

Kim did not attend the tests, but during a visit to the munitions factory, he lauded "leaping progress in producing major weapons" to implement the ruling Workers' Party's decisions made at a meeting last month, a separate dispatch said.