North Korea has stepped up its military exercises in response to what it regards as “hostile” joint drills by South Korea and the United States after Pyongyang was sanctioned by the U.N. Security Council for a nuclear test in February.

It is not known if North Korea possesses drones, although a report on South Korea’s Yonhap news agency last year said that it had obtained 1970s-era U.S. target drones from Syria to develop into attack drones.

“The (drone) planes were assigned the flight route and time with the targets in South Korea in mind, Kim Jong-un said, adding with great satisfaction that they were proved to be able to mount (a) super-precision attack on any enemy targets,” KCNA reported.