An undeclared rave party that began in the night from Friday to Saturday in the countryside of Roybon (Isère) gathered up to 1,500 people. The gathering "has just ended with the dismantling of the sound systems and the departure of almost all participants on Monday evening," the prefecture said in a statement.
The gendarmes of Isère and Drôme, bordering department, checked a total of 1,775 people, 1,264 vehicles and noted 179 offenses including 123 drug use.