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.
In Sunday's interview to franceinfo radio, Beccuau said the four arrested people - three men and a woman - all live more or less in Seine-Saint-Denis.
She said two of the male suspects had been known to the police, as they each had multiple theft convictions.
On Saturday, a 38-year-old woman was charged with complicity in organised theft and criminal conspiracy with a view to committing a crime.
Separately, a man, aged 37, was charged with theft and criminal conspiracy.
The suspects - who have not been publicly named - both denied any involvement.
Investigators believe four men carried out the daylight theft, and one of them is still on the run.
On the day of the heist, the suspects arrived at 09:30 local time, just after the museum opened to visitors. They used a stolen vehicle-mounted mechanical lift to access the Gallery of Apollo, where they cracked open display cases using a disc cutter.
Prosecutors noted that the thieves were inside for only four minutes, escaping on scooters before switching to cars. One crown was dropped during their escape, with the rest of the jewels still missing. Security measures have since been tightened at France's cultural institutions.
