SEOUL, North Korean soldiers working in the Demilitarized Zone separating the two Koreas briefly crossed into the South again Tuesday before returning to their side after the South fired warning shots, the Joint Chiefs of Staff said.

It marked the North’s second border violation in less than two weeks after a similar incident on June 9.

The JCS said the North Korean soldiers crossed the Military Demarcation Line within the DMZ in the central section of the border at around 8:30 a.m., according to the Joint Chiefs of Staff (JCS).

The South Korean military conducted warning broadcasts and fired warning shots, prompting the North Korean soldiers to return to their side of the border, the JCS said, adding that there was no unusual activity after the warning shots.

A JCS official said the incident appears to be accidental.

Source: Yonhap News Agency