According to Arlington Heights police, the fire started around 11:15 p.m. at a building in the first block of East Northwest Highway.
Video shows firefighters rescuing a man by ladder from a smokey window.
At least two other people were also rescued from the building by ladder, police said.
One person was transported to a local hospital with non-life threatening injuries, police said.
No other injuries have been reported.
The cause of the fire is still under investigation.