Warsaw knife attack injures three, third Polish school attack within a week

Polish police arrested a 21-year-old student after three people were injured in a Warsaw knife attack on 10 October, the third recorded within one week. Two 17-year-olds and a 24-year-old were hurt while submitting enrolment documents, police said. Initial findings suggest the attacker did not know the victims. The sequence raises questions over school security and threat monitoring.