# Polish government responds to wave of school violence > Live situation record from CLSTR: https://clstr.news/situations/ostroka-school-stabbing-incident > Updated: 2026-10-10T14:36:38.000Z. Sources: 303. Developments: 3. Following a series of violent attacks at schools in Poland, authorities have implemented heightened security measures and increased police presence. The violence includes a stabbing in Ostrołęka, where a 19-year-old injured approximately nine to ten people, including students, teachers, and bystanders, while also possessing a homemade explosive device. In Sierpc, a 17-year-old was detained for allegedly planning an attack with two knives. A fatal stabbing occurred at the Jan Paweł II Primary School in Leszczydół-Nowiny, near Wyszków, where a 15-year-old former student killed a 37-year-old janitor, Daria K., and injured a teacher and the principal. In response, the government launched a nationwide security operation. Recent updates indicate that police have now inspected nearly 50,000 schools and detained 76 individuals, primarily teenagers, for making online threats or attempting to smuggle weapons into educational facilities. In the Mazovian region, 46 schools have preemptively suspended classes to ensure student safety. While rumors of an internet challenge known as ‘Bloody Friday’ caused widespread panic, officials have labeled such rumors as disinformation. However, police patrols, both on foot and in vehicles, will remain stationed around schools until further notice. In Warsaw, a 21-year-old woman was detained after attacking three people, including a 17-year-old, at an adult education center. Local authorities and school directors are currently meeting to review security protocols and emergency procedures as the nationwide security sweeps continue. Prime Minister Donald Tusk has called for increased security in light of these events. In a recent incident in the Praga district of Warsaw, a 21-year-old student injured three female students with a ‘dangerous object’ at a higher education institution. An employee disarmed the attacker before police arrived; one 17-year-old victim was hospitalized with arm wounds, while two others were treated at the scene. ## Claims - Polish police inspected nearly 50,000 schools and detained 76 people during nationwide security checks. (disputed by 13 sources) - Authorities detained 59 individuals during the security actions. (disputed by 12 sources) - A 19-year-old student, Jakub Z., attacked people at Vocational School Complex No. 4 in Ostrołęka with a dangerous tool. (corroborated by 28 sources) - Nine to ten people were injured in the attack, including students, teachers, and bystanders. (corroborated by 24 sources) - Police detained the suspect near a city beach approximately 400-500 meters from the school. (corroborated by 24 sources) - The 19-year-old suspect committed self-harm and is receiving medical treatment. (corroborated by 23 sources) - A 15-year-old former student killed a 37-year-old school employee in Leszczydole-Nowiny. (corroborated by 17 sources) - Vocational School Complex No. 4 has been closed following the attack. (corroborated by 16 sources) - A student reported that the suspect mentioned wanting attention for his birthday. (corroborated by 16 sources) ## Timeline ### 2026-10-10: Emergency service probe in Hungary and school attack in Poland An internal investigation is underway in Hungary after an ambulance was reportedly denied to a student in Szombathely, while Poland faces increased security following a stabbing at a Warsaw college. 2 sources. https://clstr.news/cluster/emergency-service-probe-in-hungary-and-school-attack-in-poland ### 2026-10-07: Poland school attacks trigger nationwide security crackdown A series of three school attacks in Poland within one week has triggered nationwide security measures, including the inspection of 50,000 schools and the detention of 76 individuals. 257 sources. https://clstr.news/cluster/ostroka-school-stabbing-8-injured-by-19-year-old-student ### 2026-10-05: European police report various crimes including stabbings and school attacks A series of criminal reports across Europe include a stabbing in Vienna, a school attack in Poland, and political protests in Dresden, alongside various traffic accidents and police interventions. 68 sources. https://clstr.news/cluster/gera-bakery-burglary-attempt-fails-due-to-empty-safe --- Cite as: Polish government responds to wave of school violence. CLSTR, https://clstr.news/situations/ostroka-school-stabbing-incident