A 16-year-old has been arrested in his home in Paris for allegedly planning to carry out a terror attack.
A security official said the boy was arrested on Saturday after France's intelligence services "detected a threat".
The official said the arrest was not linked to the arrests last week of four women and a man over aborted attacks.
The boy had already been under house arrest due to France's state of emergency in which dozens of people are under special watch, said the official.
French Prime Minister Manuel Valls reiterated in an interview on Sunday that France is under maximum terror threat and "every day attacks are foiled ... (including) as we speak."