North Korea is threatening to launch military strikes on South Korea unless Seoul immediately halts anti-Pyongyang propaganda broadcasts along the inter-Korean border.
The North Korean military's front-line command said Saturday that South Korea must remove all means of psychological warfare or face "all-out military action."
South Korea restarted the broadcasts for the first time in over a decade last Monday in response to a land mine blast inside the demilitarized zone that seriously injured two South Korean soldiers.
Seoul has accused North Korea of planting the mines.
North Korea denies any involvement.