South Korean police have detained a man suspected of stabbing a high school teacher with a knife in the city of Daejeon. Police and fire department authorities did not specify the teacher’s health condition. The stabbing Friday follows a separate, apparently random attack on Thursday in which 14 people were wounded near a busy subway station in Seongnam. The attack in Daejeon, about 75 miles south of Seongnam, came shortly after President Yoon Suk Yeol called for “ultra-strong” law enforcement measures to restore faith in public safety. He described the violence in Seongnam as a “terrorist attack on innocent citizens.”