CHICAGO (AP) — Authorities arrested 21 protesters Friday and said four officers were injured outside a Chicago-area federal immigration facility that activists say functions as a de facto detention center and is plagued by inhumane conditions.

The Cook County Sheriff's Office said the arrests were made by midday, and that it was working on verifying identities and potential charges.

The office said in a later statement that four officers were injured while trying to redirect protesters off a roadway and back behind a barrier. Two Broadview police officers and one Cook County Sheriff’s Police officer were taken to a hospital. The Sheriff’s Police officer sustained a lower leg injury and was treated and released. The statement did not give details on the Broadview officers' injuries or co

See Full Page