SEOUL, The South Korean military said Tuesday it fired warning shots after North Korean soldiers briefly crossed the inter-Korean border earlier this week. A group of North Korean troops crossed over the Military Demarcation Line within the Demilitarized Zone separating the two Koreas in the central section of the border at around 12:30 p.m. Sunday, 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. Source: Yonhap News Agency