Two 13‑year‑old girls were seriously injured and a 16‑year‑old suspect was arrested after an assault at a secondary school in Upper Bavaria.

Police operated a major operation near Welfen‑Gymnasium in the small town of Schongau.

The suspect was found to be carrying a knife and a firearm, and authorities believe the attack was carried out alone.

Neither girl is in life‑threatening condition; police are still clarifying the number of other injuries.

A police spokeswoman said it was unclear which weapon had been used, and declined to confirm reports of a knife attack.

The suspect’s identity and any connection to the school remain unknown.

The officer on duty described the incident as a "rampage".

Bavaria’s interior minister Joachim Herrmann told a broadcaster that he believed the girls were stabbed—a claim that police have not verified.

Herrmann noted that the suspect had received psychiatric treatment in the past and that they might have been a former student.

A contact point for relatives and parents was set up at a local fire station.

Welfen‑Gymnasium, founded in 1887, had previously been almost exclusively a girls’ school but has been mixed gender for the last 40 years.