Three violent attacks at Polish faculties this week were pushed by the “glorification of violence” online, Prime Minister Donald Tusk said.
The attacks have left one girl lifeless and others injured, including kids.
“These are very often spontaneous actions inspired by online activity,” Tusk said on Sunday, during a disaster assembly with security companies.
Police have arrested 117 people across the nation for possession knives or other weapons, or for threatening to attack faculties or fellow college students, after looking out tens of hundreds of faculties.
A girl was arrested on Saturday after injuring three people while attacking a 17-year-old lady at an academic establishment in the capital, Warsaw.
It came a day after hundreds of police visited faculties across Poland, following two stabbing attacks earlier in the week, one of which led to the killing of a feminine caretaker.
“We are not dealing with any group organized on a big scale,” Tusk said on Sunday.
“In the past years and months, we have noted – globally and in Poland – a rise in the fascination with violence,” he added.
The prime minister said the attacks were acts “nihilistic violence” related with the excessive proper.
“Some of the people detained are active in the ultraright environment,” he said, including that police had observed a rise in online searches of Nazi content material as properly as of “mass killers who have become idols online”.
On Wednesday, a 19-year-old scholar attacked and injured 9 people at a vocational faculty in the central Polish province of Mazovian.
A day later, the 37-year-old caretaker was killed after a 15-year-old entered a major faculty in Leszczydół-Nowiny, north of Warsaw.
Interior Minister Marcin Kierwiński also said a 17-year-old was detained in the city of Sierpc, north-west of Warsaw, after allegedly stating “on school grounds that he planned to do something… dangerous – that he intended to harm someone”.
Thousands of Polish police officers visited faculties nationwide to attempt to reassure pupils after the stabbings sparked rumours of a “Bloody Friday” of more attacks stemming from a supposed online problem.
Meanwhile, Polish security companies convened a particular assembly on Sunday after receiving data about a potential attack on Tusk and Defence Minister Wladyslaw Kosiniak-Kamysz, a spokesperson said.
A particular companies spokesman said officers were treating the menace as “deadly serious”.
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