Officers were responding to a call of a knife-wielding man chasing another person in the Eggers Grove Forest Preserve near 114th and Avenue G.

A knife-wielding man who reportedly chased another person at a Cook County forest preserve was shot by law enforcement on Friday afternoon after advancing toward an officer, authorities said.

The Civilian Office of Police Accountability is investigating the shooting, which police say came after a report of a man wielding a knife and chasing another person.

A Chicago police officer shot and critically wounded a man armed with a knife Friday afternoon at a Cook County Forest Preserve on the Far South Side.