COPA said in a tweet Saturday morning that the incident happened Thursday evening, while the person was in the custody of 11th District officers.
COPA has been notified and is investigating the death of a civilian while in police custody. The incident occurred Thursday evening (1/27) while in custody of 11th District Officers.— COPA (@ChicagoCOPA) January 29, 2022
The district is referred to as the "Harrison" district on the West Side.
No additional information about the person who died or what led to the death had been released as of Sunday morning.
On Wednesday night, Chicago police officers got into a shootout with carjacking suspects on Lower Wacker Drive in the Loop.
This is a developing story; check back with ABC7 Chicago for updates.