South Korea's military said troops aired warning broadcasts and fired warning shots after approximately 10 North Korean soldiers crossed the military demarcation line in the demilitarized zone.

In June last year, North Korean troops violated the border three times, prompting South Korea to fire warning shots. The incidents occurred when the Koreas were embroiled in Cold War-style campaigns like balloon launches and propaganda broadcasts, but they didn’t develop into a major source of tensions.

In an unexpected border intrusion, about 10 North Korean soldiers crossed the tense border between North and South Korea, prompting the South to fire warning shots. This marks the first known intrusion by North Korea in nearly a year.