Last month's jewellery heist at the Louvre museum was carried out by petty criminals rather than organised crime professionals, Paris's prosecutor has said.
"This is not quite everyday delinquency... but it is a type of delinquency that we do not generally associate with the upper echelons of organised crime," Laure Beccuau told franceinfo radio.
She said four people arrested and charged so far over the theft that shocked France and the world were "clearly local people" living in Seine-Saint-Denis, an impoverished area just north of Paris.
Jewels worth €88m (£76m; $102m) were taken from the most-visited museum, in the French capital, on 19 October.
