Five teenagers will stand trial in Annecy in neighbouring France this summer over a knife attack on a 14-year-old boy outside a school.
Prosecutors have confirmed the assault on 19 May was a so-called "video lynching", carried out by a group dressed in black and filmed.
None of the five suspects attended the school, unlike the victim, and all are under judicial supervision pending trial.
They are due before the Annecy juvenile court on 16 July.
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