North Korean leader Kim Jong Un has ordered his country to quickly start mass producing self-detonating explosive drones, calling their development an “essential requirement,” after overseeing a test of the deadly aerial weapon,

Analysts say the low-cost weapons are attractive to Mr. Kim, who is intent on modernizing North Korea’s military.

News that North Korea is ramping up drone production comes a week after a Ukrainian official told BI its soldiers were getting training from Russia.