Guyancourt: a 15-year-old injured and shots heard. Two projectiles had notably passed through the window of a child's bedroom.

Two people on scooters then first shot at a video surveillance camera before opening fire on businesses, also targeting two apartments. This shootout, resembling a settling of scores, took place on a well-known deal point. The police had organized there on March 26, a “vast operation to fight against trafficking and delinquency” in the city.