The report did not give further details of the unit that produced the artillery. North Korea is believed to be ramping up production of artillery amid allegations by the US and South Korea that it is supplying Russia with weapons.

Both countries deny the allegation. The test firing showed the rockets met the required standards for flight characteristics and accuracy, KCNA said.

Kim said the 240mm multiple launch rocket system, which incorporates new technology, will “bring about a strategic change in strengthening our military’s artillery capabilities,” according to KCNA.

In a separate report, KCNA said Kim visited the Kim Il Sung Military University, named after his grandfather and state founder, to mark the anniversary of the founding of the revolutionary army, the precursor to the country’s military.