Eleven people were hurt in a crash involving five vehicles in the Bucktown neighborhood.
It happened around 2:30 Sunday morning near Western and Armitage.
An SUV traveling south on Western made a U-turn into oncoming traffic.
Two cars reportedly hit the vehicle, which then plowed into two parked cars.
The victims were all taken to the hospital in good condition.
Their injuries appear to be non-life threatening, police said.