The interim head of the Chicago U.S. Immigration and Customs Enforcement Field Office, who was called to answer questions Monday about federal agents' use of force, is heading back to Washington, effective Friday.

A federal judge on Thursday said she is "profoundly concerned” with the apparent violations by federal agents of a temporary restraining order she issued last week.

Frightened by federal agents, some tenants can't pay rent on time after missing work, while maintenance staff aren't showing up to job sites. Property owners and managers worry continued ICE activity will force them to pass costs to tenants.

ICE's top Chicago official has left his post just days before a court hearing on federal immigration agents wearing body cameras. Here's what we know.

U.S. District Judge Sara Ellis ordered Immigration and Customs Enforcement ( ICE) and Customs and Border Patrol ( CBP) officers to wear body cameras as they operate in Chicago, responding to the recent crackdown by President Donald Trump 's administration in the major midwestern city.

Residents have begun forming volunteer groups to monitor their neighborhoods for federal immigration agents. Others honk their horns or blow whistles when they see agents nearby.

The plastic whistles have become a way to loudly resist U.S. Immigration and Customs Enforcement agents and warn those who may be in danger.