A man accidentally sparked a two-alarm apartment fire in the Uptown neighborhood while using a lighter to look for something under a mattress, Chicago Breaking News reported.
It happened at 4:45 a.m. at 915 W. Wilson Ave., Fire Department spokesman Larry Langford said.
The mattress fire started in apartment 314, on the third floor, according to Langford.
The 57-year-old man who accidentally started the fire was taken to Weis Memorial Hospital suffering from smoke inhalation. He's listed in good condition. Three other people were treated at the scene.
Fire crews called an EMS Plan 1, which sends at least five ambulances to the scene, as well as a 2-11 alarm, Langford told the paper.
All smoke detectors were in working order.