Police in Curitiba, Brazil, killed an armed man Friday after he held 13 young children and staffers at knifepoint inside a preschool classroom for more than three hours.

The New York Post reported that the man broke into a classroom at the São Braz Municipal Early Childhood Education Center in the São Braz region of the southern city, about 250 miles south of São Paulo. The children were ages 4 and 5.

The standoff stretched past three hours. During that time the man poured a liquid that smelled like gasoline and repeatedly threatened to set the classroom on fire. Parana state police placed negotiating teams on scene, then sent in a tactical unit after those talks failed. All 13 children were rescued.

School security collapses fast when an adult with a blade walks into a room of preschoolers. The legal and public-safety stakes are immediate: keep the children alive, end the threat, and account for every person inside.

Threats of fire and a failed negotiation

Parana state police spokesperson Leticia Martins addressed reporters outside the school and described the danger the suspect posed to everyone in the room.

"(The suspect) also threatened to pour gasoline onto himself and others, our negotiating teams were in place, but saw no alternative but to neutralize him."

Martins’s account put the sequence in plain terms. Talks were attempted. The man kept escalating. Police then moved to stop him.

Local police commander Alexandre Dias told reporters the armed suspect was a man who suffered from schizophrenia. Dias did not release the man’s identity and did not detail how he was killed.

Dias described the entry itself in a separate statement to reporters.

"We entered the classroom using a very tactical approach, with little risk for the children."

The Special Police Operations Battalion carried out that intervention. The man was killed during the ordeal. Authorities have not publicly confirmed the weapon or method used in the final confrontation.

High-risk entries against armed suspects demand the same clarity under pressure seen in other chaotic police encounters, including a naked man firing a flamethrower at Florida deputies in a bodycam-recorded confrontation.

Explosions, rescue, and medical checks

Witnesses and on-scene reporting described two explosions during the crisis. Just minutes after those blasts were heard, officers brought some of the children outside.

Investigators have not said what caused the explosions. No public results have been released on whether they came from police tools, the liquid in the classroom, or another source.

Thirteen children were rescued. Five kids received medical attention. No injuries were reported. Tearful parents waited outside while the standoff ran its course.

Curitiba City Hall said the children and school staff will receive psychological support. Authorities have not publicly named the staffers held in the room or described their conditions beyond that pledge of support.

Footage and after-action detail often matter once officers clear a violent scene, a pattern familiar from cases where unsealed bodycam showed a six-year-old’s defiance after the Richneck teacher shooting.

What police have confirmed and what remains open

Confirmed points from official statements and on-scene reporting are limited and specific. An unidentified armed man entered the classroom. He held children and staffers at knifepoint for several hours. He poured a liquid that smelled like gasoline and threatened to ignite it. He threatened to pour that liquid on himself and others. Negotiators were present. A tactical team entered. The man was neutralized and killed. Thirteen children ages 4 and 5 got out. Five received medical attention. No injuries were reported.

Open questions remain public. Police have not released the suspect’s name. They have not stated how he was killed. They have not confirmed the chemical identity of the liquid beyond the gasoline-like smell. They have not explained the two explosions. They have not said how many staffers were held or released their identities.

Sudden deadly incidents often leave the same early gap between what is known and what still must be documented, as in coverage of a Wrightwood ejection crash where victims were identified and grim details surfaced.

Institutional response and next steps

Parana state police framed the shooting as a last option after negotiation failed and the fire threat continued. Commander Dias stressed a low-risk entry for the children. City officials shifted to aftercare with a promise of psychological support for students and staff.

No charges, charging documents, or further court posture appear in the public account, which is expected when the suspect is dead. The operational file still matters. Investigators will need to determine the man’s path into the building, any prior contacts with police or mental-health systems, the exact nature of the liquid, and the source of the explosions.

Those findings feed basic accountability: Was access control at the early childhood center adequate? How fast did the first units arrive? Did the negotiating clock match the rising fire risk? The public answers will decide whether this is remembered only as a successful rescue or also as a preventable breach.

Readers who follow major violent crime cases know the legal track can shift even after the scene is cleared, including when LA prosecutors took the death penalty off the table for Nick Reiner in his parents’ stabbing case.

School safety and the use-of-force line

A knife in a preschool classroom leaves little margin. Add a liquid that smells like fuel and repeated threats to light it, and the timeline compresses. Brazilian tactical police chose entry over more talk. Officials say the children faced little risk in that final move and that all 13 came out.

The legal standard in any such case is necessity and proportionality under local rules. The factual record here, as released so far, centers on an active threat to small children, failed negotiation, and a planned tactical assault by the Special Police Operations Battalion. How the man died remains undisclosed. That gap does not erase the reported outcome for the hostages: rescued, with no injuries reported.

Mental illness entered the public narrative only through Commander Dias’s remark about schizophrenia. Police did not present medical records or a formal diagnosis in the quoted statements. Motive beyond that description was not given.

Separate court fights over culpability and mental state continue to draw attention in other serious cases, including when a judge rejected Lindsay Clancy’s bid for a not-guilty finding after a mistrial.

What the record shows so far

Friday’s events at the São Braz Municipal Early Childhood Education Center produced a short list of hard facts and a longer list of unfinished investigative tasks. An unidentified man used a knife to seize a classroom of 4- and 5-year-olds and staff. He poured a gasoline-smelling liquid and threatened fire. Negotiators could not end it. A specialized police battalion did. The suspect was killed. Thirteen children were rescued. Five were checked by medical staff. No injuries were reported. City Hall ordered psychological support.

Paranaíba Mais and wire reporting carried the same core sequence: break-in, hours-long knifepoint control, fire threats, tactical resolution, and rescue. Police spokespeople put the neutralization decision on the continued gasoline threats after talks were already underway.

Authorities have not publicly confirmed the suspect’s identity, the precise composition of the liquid, the cause of the two explosions, or the mechanics of the killing. Those points sit with investigators and any internal review the battalion and state police conduct.

For parents in Curitiba and for anyone watching school security, the operational lesson is blunt. Early childhood centers are soft targets unless doors, staff protocols, and police response times are real. When a man with a knife and a fuel-like liquid owns a classroom for three hours, the only measure that counts is whether every child walks out.

Lawful force exists for the moment talk stops working and a room full of four-year-olds is the prize. The state either ends that threat or it does not.