Kim Jong Un supervises North Korean troops simulating attack on South

An artillery drill at an undisclosed location in North Korea (Korean Central News Agency/Korea News Service/AP)

North Korean leader Kim Jong Un has supervised a live-fire artillery drill simulating an attack on a South Korean airfield and called for his troops to be ready to respond to the enemies’ “frantic war preparation moves” — apparently referring to the recent series of military drills between the United States and South Korea.

It comes a day after South Korea’s military detected the North firing at least one short-range ballistic missile toward the sea from a site near the western coastal city of Nampo.