Man shot while driving on Chicago's Northwest Side, police say

CHICAGO - A man is in critical condition after being shot while driving Sunday night on Chicago’s Northwest Side, police said.

What we know:

The shooting happened around 9:44 p.m. in the 1500 block of North Karlov Avenue in the Humboldt Park neighborhood.

Police said the 24-year-old man was driving when another man standing near a curb fired at his vehicle.

The driver was struck once in the back and taken to Illinois Masonic Medical Center in critical condition.

What we don't know:

It remains unclear if the victim was shot at random or targeted.

What's next:

No arrest has been reported. Area Five detectives are investigating.