Investigators say the illegal gatherings were reported over a span of seven hours late Saturday into early Sunday, and featured hundreds of cars drag racing, drifting and lighting trash fires.

Philadelphia police said multiple law enforcement vehicles were damaged after hundreds of cars gathered at 11 illegal car meetups across the city overnight.

From an injured police officer to rubbish fires set, the Philadelphia Police Department is cracking down on illegal street racing and reckless driving after a series of ‘dangerous’ incidents across the city over the weekend.

As the Philadelphia police begin its efforts to crackdown on illegal car-meetups after a dangerous series of incidents this weekend, witnesses and residents share their reactions and concerns.

Philadelphia police are investigating several illegal car meet ups that took place in neighborhoods across the city, including near City Hall, in front of the Art Museum, and Graduate Hospital.

Crowds of people set off fireworks and did donuts at several locations across the city Saturday night into Sunday morning, including in front of City Hall and the Philadelphia Museum of Art, police say.

Video from the Citizen App shows a large crowd gathered right in front of City Hall, which has been a meeting location for drivers doing burnouts and stunts before.