Chicago police shot a man they say pointed a gun at an officer overnight.
It happened near Madison and Lotus avenue, just after 2:30 a.m. Sunday.
Police showed up, after getting a call about several disturbances in the area.
When they started to break up one crowd, an officer reportedly noticed a man in another group pointing a gun at several people, police said.
The suspect then tried to run, but police caught up with him.
The man pointed his gun at the officer, and the officer fired.
The man was taken to the hospital in serious condition, police said.
The Independent Police Review Authority is investigating.