A large group of dozens of teens stormed through Ford City Mall and surrounding parking lots Saturday night resulting in more than a dozen arrests.
Video posted to YouTube shortly after the incident show rowdy teens outside of the mall tying up traffic and in one instance throwing a chair at a passing car.
The crowd descended on the mall less than an hour after an appearance by the boy band Mindless Behavior. Mall officials posted to their Facebook page that the event was not related to the later violence:
Thank you to all the Mindless Behavior fans who attended today's meet & greet. Totally unrelated to today's event, a group of unruly teens entered the mall and caused a disturbance. On the recommendation of the Chicago Police Department the mall was closed for the safety of the shoppers and tenants.
There were two minor injuries reported. A total of 19 people were arrested on the scene that saw around 50 squad cars respond, the Chicago Tribune reports. One of the teens was charged with criminal trespassing, one with battery and 17 with mob action, according to the Tribune.
Investigators are still reviewing video surveillance from a bus and several stores in order to identify more participants, the Southwest Chicago Post reports.
A similar event occurred earlier this month at Chuck E. Cheese in Oak Lawn, 4031 W. 95th St. In that instance a group of about 40 teens were disruptive to customers and smashed a Pace bus window.