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South Korea's Joint Chiefs of Staff said Tuesday it is investigating the overall border security operations of a military unit after a civilian crossed the Civilian Control Line and damaged a fence near the inter-Korean border, KBS World reports. The incident follows the apprehension of a woman in her 30s who made an unauthorized entry into a restricted front-line area in Cheorwon, Gangwon Province, and reached the barbed-wire fence, according to Yonhap and the Korea Times. The military is questioning the woman, whose identity has not been disclosed, and the probe focuses on how she breached the civilian access control line. Korean media coverage centers on the security lapse and the military's response, with outlets noting the investigation into the unit's border security operations.