A judicial investigation was entrusted to the "police of the police" after the controversial evacuation, Friday in Paris, of an environmental demonstration during which activists were sprinkled with tear gas.

The prosecutor's office of Paris announced Monday opened an investigation entrusted to the IGPN, the "police of the police" after the controversial intervention Friday forces of the order on the bridge of Sully in Paris, to dislodge environmental activists who peacefully participated in a sit-in.

The prosecutor's office said it had opened a preliminary investigation of the count of "intentional violence by a person in charge of the public authority", entrusted to the General Inspectorate of the National Police (IGPN).