CHICAGO (CBS) — Chicago Police say 121 immigration rights demonstrators were arrested at a sit-in on Clark Street at Congress this afternoon.READ MORE: Jussie Smollett Trial: Defense Attorney Calls For Mistrial And Accuses Judge Of Lunging At Her; Judge Denies Claims And Motion
Police say the demonstrators blocked traffic on Clark Street for almost an hour. The police line on Congress blocked one lane of traffic on the south side of the street, police say.
The U.S. Citizenship and Immigration Services building at 101 West Congress Parkway was the focus of the demonstration.READ MORE: Chicago Weather: Disturbance Brings Chance Of Rain-Snow Mix To Our North Overnight
Organizers say they want Congress to approve immigration reform.
At least 200 people took part, including some Chicago aldermen.MORE NEWS: View Live Radar
Police say the arrests were made without incident.