North Korean leader Kim Jong Un has called for the mass production of attack drones after Pyongyang accused Seoul of flying unmanned aerial vehicles (UAVs) in the airspace over its capital in what it called a "war provocation.”

Kim oversaw the performance tests of various attack drones under development in his second field inspection in less than three months, the nation’s official Korean Central News Agency said on Friday.

Photos released by KCNA showed a drone flying over the top of a car, which is then seen having been set ablaze.