A 23-year-old French man has confessed to having killed a teen schoolgirl since he was 'angry' over losing a game of Fornite, a popular online video game.

Police on February 8 said they recovered the body of a girl, around 12 hours after she was reported missing by her parents, in Epinay-sur-Orge town in France.

The Independent identified the victim as Louise Lasalle.

She reportedly vanished on her way from school.

According to reports, the 23-year-old suspect was identified by local media as Owen L.

“While playing Fortnite, he had an altercation online with another player who insulted him,” prosecutor Grégoire Dulin was quoted as saying by People.

“Very angry, he stopped playing and went out to calm down," the prosecutor said.

The autopsy, carried out on Saturday, ruled out "the possibility of sexual violence", but "revealed the presence (...) of numerous wounds made with a sharp object in several vital areas", attesting to the "extreme violence of the blows", reported Le Monde.

Epinay-sur-Orge mayor, Olivier Marchau, condoled the death of the teen and wrote on Facebook: "The main suspect in Louise's horrific death, which affects us all, has confessed and been taken into custody."

"No words are strong enough to express our sadness and dismay at such an incomprehensible act. Louise was a young girl full of joy who only asked to live her teenage life," he said.

What is Fortnite?

Fortnite is an online video game and game platform developed by Epic Games and released in 2017.