Chicago police said its officers and Chicago Fire Department firefighters responded to a building fire in the Logan Square neighborhood's 3000-block of North Davlin Ct. just before 10 a.m.
CFD said crews pulled a woman from the home. CPD said that woman, who was suffering from smoke inhalation, was transported to Stroger Hospital in serious condition.
A firefighter, who suffered a minor knee injury, was also taken to a local hospital, CFD said.
No other injuries were reported.
Police said the fire displaced three women and two men.
How the fire started was not immediately clear.
Authorities are investigating.