PARIS -- French judicial authorities are investigating five people after uncovering an ultra-right plot to attack a religious venue.
The official said only one of the four was being held.
He was confirming portions of a BFMTV report saying that targets were Muslim or Jewish. The official, who requested anonymity because he wasn't authorized to speak publicly, didn't say at what stage the plot was or what the target was.
There was no link with a 2017 ultra-right plot against mosques and migrants.