A 15-year-old boy in France has died in hospital on Friday, a day after he was attacked by a group of people after a music lesson at school, reports Deutsche Welle.
A murder investigation has now been opened, regional prosecutor Grégoire Dulin said on Friday afternoon.
The incident occurred in the town of Viry-Châtillon, located around 20 kilometers (12 miles) south of the capital, Paris.
Media cited prosecutors as saying the attack was carried out by masked youths.
Thursday's attack came just two days after a teenage girl was left temporarily comatose following an attack outside her school in the south of the country.
A police source said the boy was beaten by several people who then fled the scene.
He was found in a street "not far from his school," according to prosecutors.