Twelve people were wounded when a grenade was thrown into a bar in the city of Grenoble in south-eastern France, officials said on Wednesday.
A person entered the bar and threw a grenade without speaking before fleeing, said prosecutor Francois Touret-de-Courcy.
The incident took place in the Olympic Village neighbourhood, built when the city hosted the 1968 Winter Olympics, he said.
Touret-de-Courcy said the wounded included two people in critical condition, adding that investigators had not yet identified a motive but did not believe it was a terrorist attack.
“I condemn in the strongest possible terms this criminal act of extraordinary violence,” the local mayor, Eric Piolle, wrote on X, thanking the emergency services for their work.
Police confirmed the explosion had been caused by a thrown grenade.
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