What happened around Bourse de Commerce - Pinault Collection today?

Hey everyone! I’m a tourist, and I was wondering if anyone knows what was going on around that building earlier today? Around 6–7 PM, I walked by the area and saw several police vehicles parked nearby. Suddenly, a bunch of people started screaming and running, and I honestly panicked for a moment, thinking it might be a terrorist attack. Eventually, I realized it seemed to involve some teenagers — I even saw police chasing a few of them. Does anyone know what actually happened?