A 16-year-old student at a Catholic school in the city of Saint-Jean-de-Luz in southwestern France fatally stabbed a teacher, French authorities said on Wednesday, as cited by Reuters.

According to local deputy Vincent Bru, the victim was a 50-year-old Spanish teacher. Police have arrested a student who told another teacher he was possessed and heard voices telling him to attack the woman, according to a source close to the investigation.

Bru declined to give details of the attack, but said it “doesn’t seem to have a terrorist motivation at all”, as in the October 2020 killing of Professor Samuel Paty, a case that has mourned France and prompted the government in Paris to adopt a wide-ranging anti-radicalisation package Islamists

But Bru said the attack was a “shock”, explaining that the school is in a quiet area and there had been no security concerns so far.

Citing two students who were in the classroom where the attack took place and witnessed it, the local publication Sud Ouest writes that the school’s students fled in panic after the crime.

The two said the attacker got up during class and headed for the door, then turned and punched the teacher.

BFM TV broadcast a similar version of events, adding that the attacker talked to a teacher in a nearby classroom after the murder, was calm and agreed to hand over the weapon.