North Korea said it conducted a series of weapons tests over three days this week, including a graphite bomb targeting enemy electric grids and a Hwasong-11A short-range ballistic missile (SRBM) equipped with a cluster munition warhead. 

The Korean Central News Agency (KCNA) reported Thursday that research agencies under the Missile Administration also tested a new “low-cost” missile engine, an unnamed electromagnetic weapon and short-range anti-aircraft missiles on April 6, 7 and 8.

The reportsaid first vice director of the Workers’ Party Munitions Industry Department Kim Jong Sik oversaw the tests, without mentioning the presence of DPRK leader Kim Jong