North Korea’s state media described the country’s new 300mm rocket artillery system for the first time on Friday. The article and photographs published by state media – combined with the data reported by the South Korean military Thursday – revealed details of the weapon, including that it may be among the longest ranging of such weapons and may take design cues from American-made weapons.

The 300mm multiple rocket launcher (MRL) has been suspected to exist since at least 2014 and was first shown in a parade in Pyongyang on October 10, 2015, but Friday’s report is the first time Pyongyang’s media has clearly described the system in conjunction with photographs.

The Korean Central News Agency (KCNA) and Rodong Sinmun reported North Korean leader Kim Jong Un’s attendance at a test firing of the system on Thursday, which was detected by the South Korean military. Among those accompanying Kim was Hong Yong Chil, deputy director of the WPK Machine-Building Industry Department and a key arms industry official who is usually present when the DPRK is testing new weapons systems. […]