Sierpc

The following day, a 15-year-old fatally stabbed a school caretaker and injured two others at a primary school in Leštudu Novine.

Another teenager was also detained on suspicion of planning an attack at a school in Sierpc.

On October 9th, authorities reported a wave of online posts calling for Bloody Friday massacres at Polish schools.

On October 10th, a woman injured three people in a knife attack at a school in Warsaw.

A 37-year-old employee died, while two others, including the school principal, were injured.

Earlier that day, police detained a 17-year-old in Sierpc who planned a school attack, finding two knives in his backpack.

These incidents followed a knife attack on Wednesday at a vocational school in Ostrovenka, where a 19-year-old student allegedly injured nine students and teachers before fleeing.

In response, Tusk announced that all schools would receive information on emergency contact numbers, stressing the importance of equipping students and staff to respond to dangerous situations.

The stabbing comes amid growing concern over school violence in Poland.

Just a day earlier, police arrested a 17-year-old student in the town of Sierpc after teachers reported that he had threatened to carry out what he described as a dangerous and spectacular act at his school.

Officers later found two knives in his possession.

Interior Minister Marcin Kierwinski said the teenager had also been searching online for information about organizing a violent attack.