A 21-year-old woman has been arrested after an attack at a post-secondary school in Warsaw, Poland, left three people injured on Saturday, October 10, 2026, according to police.
The incident was the third attack at an educational institution in less than a week, increasing concern about school safety and possible copycat violence among young people.
The suspect allegedly used a dangerous object to attack a 17-year-old girl at the school in the Praga district of the Polish capital. Two other people, aged 17 and 24, were also injured, Warsaw police spokesman Jakub Filipiak told The Associated Press.
One victim was taken to a hospital with injuries that were not considered life-threatening. The other two injured people did not need hospital treatment, police said.
The attack took place around 12:30 p.m. local time while the school was open. Students were reportedly visiting the school office to submit papers when the incident occurred. Bloodstains were visible on a patch of grass near the entrance after the attack.
Police said the suspect did not know the victims. She was taken into custody, while investigators worked to establish what led to the incident.
The attack followed two violent incidents earlier in the week, including a fatal stabbing at a primary school in central Poland.
In response, police increased security at educational institutions across the country, detained dozens of people and checked nearly 50,000 schools by Saturday.
Authorities have not confirmed that the three attacks were connected. They have also said they found no evidence of an active online challenge encouraging students to attack schools.
The incidents have raised questions about the spread of violent content online, threats made by young people and how schools can better protect students and staff.
Warsaw School Attack Sparks Fears of Copycat Violence
The Saturday attack in Warsaw came after two serious incidents in the Mazovian province, a region in central Poland that includes the capital.
On Wednesday, a 19-year-old student at a vocational school allegedly attacked fellow students, teachers and people passing by with a sharp object. Nine people were injured before police arrested the suspect nearby.
The following day, a 15-year-old allegedly attacked people at his former primary school in Leszczydół-Nowiny, north of Warsaw. A 37-year-old school caretaker was killed, and two other people were injured.
The attacks shocked communities across Poland and led schools to review their safety measures.
The latest incident added to concerns that young people might copy violent acts they see online or hear about in the news. However, police have not confirmed that the three incidents were part of a shared plan or that the suspects acted together.
Kacper Rekawek, a senior researcher at the International Center for Counter-Terrorism in The Hague, told The Associated Press that the timing and locations of the attacks raised questions about possible links.
He described the incidents as part of a possible copycat pattern and referred to previous acts of mass violence, including the 2019 attacks in Christchurch, New Zealand.
In those attacks, white supremacist Brenton Tarrant killed 51 Muslim worshippers at two mosques.
Rekawek said one suspect in the recent Polish incidents reportedly used imagery and styles associated with Tarrant. His comments raised concerns about the influence of violent figures on people who follow extremist material online. Still, investigators have not publicly established that the three Polish attacks were coordinated.
The Polish government has also said it found no evidence that a supposed internet challenge was encouraging people to attack schools.
The distinction matters because rumors about coordinated attacks spread quickly after the first two incidents. Those claims caused fear among parents, students and school staff, even though officials had not confirmed the reports.
Police continue to investigate the separate cases and assess threats reported at schools across the country.
Police Detain 76 People and Inspect Schools Nationwide
By Saturday, Polish police had detained 76 people across the country for reasons that included possessing dangerous weapons, making threats against schools or threatening fellow students. Officers had also checked nearly 50,000 schools as part of the security response.
The detentions involved separate cases and do not mean that everyone arrested was suspected of carrying out one of the three attacks.
Police said those detained included a 14-year-old boy in Warsaw who was found carrying a knife with a concealed blade and 11 firecrackers. A 16-year-old was also reportedly found with a butterfly knife in his school backpack.
Other people had allegedly posted pictures of knives online or threatened classmates and schools.
The checks were intended to find possible dangers before anyone else was hurt. Officers visited schools, looked into reported threats and helped reassure worried students and families.
The response followed rumors of a possible wave of attacks on Friday, which some online messages called “Bloody Friday.”
The claims spread through parents’ online groups and media reports on Thursday night. As a result, 59 schools across Poland suspended classes on Friday as a precaution. Most were in the Mazovian province.
Other schools introduced additional safety measures, including placing more staff at entrances and asking students to allow voluntary backpack checks.
According to AlJazeera, Interior Minister Marcin Kierwiński defended the stronger security response, saying: “There will be no compromise here. The safety of the youth is the most important thing.”
Officials have not confirmed that the rumored Friday attacks were part of a real, organized plan. However, the reports showed how quickly unverified information can disrupt school activities and cause fear among families.
Authorities have said that additional security measures will continue while police examine threats and investigate the recent violence.
Examines Online Violence and School Safety Measures
The attacks have renewed debate in Poland about the effect of violent content on young people and the need for stronger protections at schools.
Prime Minister Donald Tusk said the recent incidents appeared to be spontaneous acts influenced by online activity. He has also warned about the growing interest in violent figures and extremist material on the internet.
The government has raised concerns about websites and online communities that praise mass killers or spread harmful material. Officials are also considering how to prevent recordings of violent crimes from being shared online.
Tusk said the government wanted to renew efforts to pass legislation that would give authorities stronger powers to block harmful online content.
“If that juvenile attacker had streamed the crime online today, we would have been unable to block that content because we have not been given that legal tool,” Tusk said.
His comment referred to concerns about the ability to stop violent material from spreading while an attack is taking place.
The issue has become more urgent following reports that the 15-year-old accused in Thursday’s fatal attack wore a camera to record his actions.
School principal Krzysztof Ochmański eventually overpowered the teenager, according to reports. The principal later described a moment when the boy appeared to understand the seriousness of what he had done.
“Once I had established contact, he asked me for help,” Ochmański said. “It got to the point where he wanted a hug.”
The account has drawn attention to the challenges school staff may face when responding to a violent emergency, especially when the person responsible is a student or former student.
Authorities have said that schools will receive further support, including additional security measures and crisis training. Parents and teachers have also been urged to speak with children about online activity and concerns about school violence.
The government’s plans include efforts to strengthen the rules for harmful online content. Any new law would need to address how such material is identified and restricted.
Polish authorities have not confirmed that the three attacks were connected or that an online challenge was driving further violence.
