Chicago alderman says 400 people, ages 14-21, flooded streets for party, prompting concerns ahead of summer | Fox News

Videos posted to social media show the young group jumping on vehicles and flooding the streets of downtown Chicago and North Avenue Beach at an event that was “anonymously promoted via social media and encouraged people to bring their own alcohol and drugs.”

“The event advertising said it was open to all ages and would feature a drinking contest, boxing matches, and twerking contests. This promoted event was unpermitted by the City and the Park District,” she said in a Thursday statement. “Police received advance warning of the event and placed extensive resources at every entrance to the beach, including the pedestrian bridge.”