North Korea Threatens Border Escalation Over Mine Incident

North Korea threatened Monday to resume propaganda loudspeaker broadcasts and deploy more weapons along the border with South Korea, escalating tensions over recent mine blasts that injured South Korean soldiers.

The heightened rhetoric follows South Korea's formal accusation earlier this month that North Korea-planted mines caused the Sept. 21 explosions, which injured three South Korean soldiers. Seoul has demanded an apology and the removal of other mines.

Kim Yo Jong, the influential sister of North Korean leader Kim Jong Un, accused South Korea of firing warning shots and issuing warning broadcasts numerous times at the border since August. She stated that these actions, under the pretext of North Korean soldiers crossing the border, have "gone beyond the red line" since the mine explosions.

"A grave situation is prevailing along the southern border due to the reckless behavior of the ROK military gangsters," Kim Yo Jong said, referring to South Korea by its official name, the Republic of Korea.

She indicated that the North Korean military was considering "deploying more tactical strike means along the southern border as a preemptive and suppressive measure to deal with contingency, and of resuming the loudspeaker broadcasting against the ROK."

The Korean border, one of the world's most heavily fortified, has seen increased tensions in recent years. North Korea has been installing mines, barbed wire fences, and anti-tank barriers along the front line as part of its policy to sever ties with South Korea.

South Korea's military previously reported that North Korean soldiers had violated the border's military demarcation line 50 times this year while conducting fortification work, responding with warning shots and broadcasts. The military had not immediately commented on North Korea's latest warning.

In 2015, a similar incident involving mine blasts that injured two South Korean soldiers brought the Koreas to the brink of armed conflict after South Korea resumed front-line loudspeaker propaganda broadcasts for the first time in 11 years.

Loudspeaker broadcasts are among the Cold War-era psychological warfare tactics occasionally employed by both Koreas during times of confrontation. South Korea's government, since taking office last year, had halted such broadcasts as part of efforts to improve inter-Korean relations, a move that led North Korea to cease its own broadcasts. North Korea has recently increased its weapons testing activities, reportedly to pressure the United States into making concessions in diplomatic efforts.