North Korea says front-line units ready to strike South if more drones appear

Kim Jong Un supervises artillery firing drills in North Korea as the country issues a warning to the South (Korean Central News Agency/Korea News Service via AP, File)

North Korea said its front-line army units are ready to launch strikes on South Korea, ramping up pressure on its rival that it said flew drones and dropped leaflets over its capital Pyongyang.

South Korea has refused to confirm whether it sent drones but warned it would sternly punish North Korea if the safety of its citizens is threatened.