ICE arrests over 400 people in Chicago area operation, sparking controversy over immigration enforcement tactics and policies.

ICE arrests over 400 people in Chicago area operation, sparking controversy over immigration enforcement tactics and policies.

The Department of Homeland Security said there had been 550 arrests in the Chicago operation.

Three protesters were arrested after Customs and Immigration Enforcement agents clashed with more than "100 rioters" outside a processing center west of Chicago.