A Chicago police officer was killed and a second officer critically wounded in a shooting at a hospital involving a suspect who was in police custody for treatment, authorities said.

The deceased officer has been identified as 38-year-old John Bartholomew. The second officer remains in critical condition following the incident.

The shooting occurred while the suspect was receiving medical treatment at the hospital under police supervision. The suspect was originally in custody on robbery charges.

Following the shooting, the robbery suspect now faces murder and attempted murder charges in connection with the attack on the two Chicago police officers.

The incident highlights the ongoing dangers faced by law enforcement officers, even in what might typically be considered routine supervisory situations. Further details about the circumstances leading to the shooting have not been released by authorities.