A French security official says several people have been arrested on suspicion of preparing a possible attack.
It’s understood they were held as part of a counter-terrorism operation in the Paris suburbs and the southeastern part of the country.
The operation is still underway in the capital's Alpes-Maritimes region, which includes part of the French Riviera.
Police anti-terrorist operation underway in French region of Alpes-Maritimes - @Reuters citing police source— Dan Williams (@DanWilliams) November 7, 2017
More to follow.