North Korea warns of fresh border measures as loudspeaker broadcasts near

North Korea is preparing fresh countermeasures along its southern frontier and will have propaganda loudspeakers operational against South Korea in a matter of days, according to a statement released Thursday by Kim Yo-jong, the sister of North Korean leader Kim Jong-un.

The announcement, carried by state media, followed an inspection visit by Kim and senior military officials to frontier fortifications. Kim warned that the newly deployed mechanisms would be placed on alert across the entire border zone. She insisted that Pyongyang's long-term fortification drive within its sovereign territory will proceed as planned, claiming the physical barriers would help prevent armed conflict rather than cause it.

However, Kim delivered a sharp warning to Seoul, asserting that South Korea would encounter severe distress if it made any deliberate or unintended mistakes. The comments specifically targeted South Korean criticism regarding North Korea's recent border activities and threats of psychological warfare. Kim also rebuked a South Korean presidential defense policy adviser who had called on Pyongyang to offer an apology for border incidents.

Tensions across the frontier have intensified as North Korea accelerates efforts to reinforce its boundary. Since April 2024, North Korean personnel have built anti-tank obstacles, strung barbed-wire fences, and buried land mines across the region. The drive follows a shift in policy announced in late 2023, when North Korean leadership formally redefined ties with the South as relations between two mutually hostile nations.

The ongoing construction has triggered repeated standoffs. South Korean troops have frequently broadcast warnings and fired warning shots when North Korean units crossed or operated extremely close to the Military Demarcation Line.

Frictions grew particularly sharp after a land mine blast in the Demilitarized Zone injured three South Korean personnel on September 21. Following an investigation, the South Korean armed forces and the United Nations Command blamed antipersonnel explosives planted by North Korea south of the demarcation line, terming the act a breach of the Armistice Agreement. Pyongyang rejected that finding.

In response to the North Korean threats and fortification work, South Korean defense officials promised resolute countermeasures. Gen. Jin Yong-sung, chairman of South Korea's Joint Chiefs of Staff, instructed military units to take a stern stance against provocations and maintain operational control across the border area.