Immigration advocates and several alderpersons gathered outside the building as the arrests were in progress. They say federal agents detained at least 10 people who had shown up for a routine immigration appointment.

It was a chaotic scene in Chicago's South Loop on Wednesday, as U.S. Immigration and Customs Enforcement agents and other officers took several people into custody.

ICE detained several immigrants in Chicago’s South Loop on Wednesday and clashed with advocates protesting the arrests. WGN News cameras rolled as advocates gathered outside the BI Incorporated building Wednesday afternoon,