Third attack on Polish educational institution in a week; student stabs three in Warsaw

A 21-year-old student attacked three people at a higher education institution in Warsaw, marking the third violent incident at a Polish educational institution in a week. The weapon is described as a 'dangerous object' and one victim suffered stab wounds; the suspect was subdued by staff. The pattern of repeated attacks raises concerns about security at educational sites, though motives and links between incidents remain unclear.