CHICAGO (CBS) — A few car windshields were smashed Saturday night outside a high-rise cooperative housing building in Kenwood.

Neighbors said at least 30 teenagers seemingly appear out of nowhere near the Harper Square Cooperative at 4800 S. Lake Park Av.

READ MORE: Willowbrook Wildlife Center Overcrowded As Veterinarians See Surge In Injured Animals

A neighbor who asked not to be identified told WBBM she heard a commotion just after 9 p.m., and looked out her window, and saw the kids getting louder, with some running and jumping on top of cars parked on the street.

READ MORE: Rollover Crash On Lake Shore Drive Closes Northbound Lanes Between Fullerton And Belmont Avenues

“We heard glass break, and then I’m hearing kids laughing,” she said.

The neighbor said when she went down to take a look, saw the windshields were completely destroyed on at least four cars.

MORE NEWS: Brookfield Zoo Hosting Blood Drive Wednesday; Free Admission With Donation

Police said they’re investigating, but don’t have any further information.