# School stabbing incident in Tuzla, Bosnia and Herzegovina

> Live situation record from CLSTR: https://clstr.news/situations/school-stabbing-incident-in-tuzla-bosnia-and-herzegovina
> Updated: 2026-09-11T00:00:00.000Z. Sources: 48. Developments: 2.

On September 4, 2026, a 15-year-old student was arrested following a knife attack on two 14-year-old classmates at Gornja Tuzla Elementary School in Bosnia and Herzegovina. The victims sustained various cuts to their arms, shoulders, and legs but were reported to be in stable condition at the University Clinical Center in Tuzla.

The Tuzla Canton Ministry of Internal Affairs confirmed the suspect was placed under police supervision, and the Tuzla Canton Prosecutor's Office initiated an investigation to determine the circumstances of the attack.

## Claims

- The two injured individuals are currently in stable condition and not in immediate life-threatening danger. (disputed by 7 sources)
- The injured student was transferred to KBC Zagreb and requires surgery due to deep stab wounds. (disputed by 5 sources)
- A student injured another student and a staff member with a sharp object at a school in Zagreb. (corroborated by 23 sources)
- The student responsible for the attack is currently under police custody. (corroborated by 11 sources)
- The attacker entered the school wearing a mask. (corroborated by 7 sources)
- The Ministry of Science, Education and Youth is sending a crisis team to the school. (corroborated by 7 sources)
- The attacker was reportedly a first-year student. (corroborated by 6 sources)
- Classes were suspended for the day. (corroborated by 5 sources)
- The attacker told a professor that he intended to kill someone and himself. (corroborated by 2 sources)
- Two people were injured and transferred to KBC Sestre milosrdnice and KBC Zagreb. (corroborated by 2 sources)

## Timeline

### 2026-09-11: Zagreb school stabbing: Student attacks classmate and staff member

A student attacked a classmate and a staff member with a knife at an electrical engineering school in Zagreb, Croatia. Both victims are stable after surgery, and the attacker is in police custody.

34 sources. https://clstr.news/cluster/zagreb-school-stabbing-student-and-staff-member-injured

### 2026-09-04: Gornja Tuzla school student arrested after knife attack on classmates

A 15-year-old student was arrested after stabbing two 14-year-old classmates in the courtyard of a school in Gornja Tuzla, Bosnia and Herzegovina. The victims are in stable condition.

15 sources. https://clstr.news/cluster/tuzla-school-knife-attack-leaves-two-students-injured

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Cite as: School stabbing incident in Tuzla, Bosnia and Herzegovina. CLSTR, https://clstr.news/situations/school-stabbing-incident-in-tuzla-bosnia-and-herzegovina