An unruly crowd gathered near Philadelphia City Hall on Saturday night, launching fireworks and jumping at a parked police car as street runners run donuts around a police car.

The chaotic scene unfolded around midnight on Market Street near City Hall.

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Video recorded at the scene shows fireworks lighting up the sky above the street amid masses of people and roaring traffic. Apparent street racers have been seen adrift through streets and intersections. A car was recorded making donuts around a stopped police car in front of spectators.

The next morning, a video showed skid marks in the form of large circles on the street.

Philadelphia Police said the department was investigating the incident and looking for members of the group, FOX29 Philadelphia reported.

At least one police car was damaged after people in the crowd jumped on its hood. There were no reports of injuries related to the incident.

“Our number one priority is the safety of the public, which can and often becomes compromised when individuals behave in a reckless manner that endangers them and those around them,” said a spokesperson for the police at the station.

The police had not yet made any arrests Monday morning.

Investigators said similar incidents were reported over the weekend as unruly crowds continued to be “an ongoing problem in the city,” the station reported. One incident allegedly involved 200 cars.

These types of incidents involving drivers performing stunts on the streets or in vacant lots are sometimes referred to as “side shows,” according to the Philadelphia Inquirer, and are often staged on social media.