Wave of school crimes shakes Poland - police have searched 50,000 schools

On Saturday, a 21-year-old woman attacked an educational institution in Warsaw.

According to the police, she injured three people with a sharp object, two 17-year-olds and a 24-year-old.

According to CNN, the authority does not want to state which institution it is about. But it must be about a higher education institution, which is the reason why it was open on a Saturday.

The attack comes after Polish police arrested 76 people and searched 50,000 schools across the country.

The effort, in turn, is a consequence of two school attacks earlier this week. On Wednesday, nine people were injured when a 19-year-old student attacked a school in central Poland. Among the victims were students, teachers and passers-by.

The next day, a 15-year-old boy killed a school teacher and injured two other people. The attack happened at the perpetrator's former school in the same province. The boy had a camera with him and intended to film the act

Rumors abounded on Thursday, spread by parents online and established media, that the killings were coordinated and that more were to come.

59 schools in Poland canceled classes on Friday. Principals informed about increased security measures with more employees at entrances and searches of backpacks.

- There will be no compromise here. The safety of young people is the most important thing, Interior Minister Marcin Kierwiński is quoted by CNN.

Among those arrested is a 14-year-old boy from central Warsaw who was found with a knife and eleven firecrackers, and a 16-year-old who came to school with a butterfly knife in his backpack.

The two perpetrators from earlier this week have been arrested.

According to the country's government, there are so far no signs that any kind of online solicitation is behind the attack. There is currently no indication of a connection between the two attacks earlier this week.

The government is to present a bill to stop harmful content online.

- If the minor perpetrator had broadcast the crime live online today, we would not have been able to block that content, because we have not received the legal tool, says Prime Minister Donald Tusk according to CNN.

The 15-year-old boy who killed the school teacher and injured two adults in Thursday's attack was overpowered by the school's principal, who later told Polish media that for a moment the boy appeared to realize the meaning of his actions.

- Once I had made contact with him, he asked me for help. It went so far that he wanted a hug, he says.