The fire began shortly before 5:30 a.m. Saturday in a building located in the 8100 block of S. Evans Ave. in Chicago.
The fire started in the basement of the two-flat building, according to Fire Media Affairs Director Larry Langford. One resident of the building, a man in his 70s, was taken to Jackson Park Hospital in critical condition, Langford said. He was found in the second floor rear of the building during a search by firefighters. Another resident of the building was taken to Jackson Park Hospital in good condition, with minor burns, Langford said. That man "had attempted to pull out a mattress that had caught fire," he said.
The firefighter was taken to Northwestern Memorial Hospital. The firefighter was injured but "he's in good shape," Langford said.
The damage to the building, which is on a block of two-flat apartment buildings, was moderate, Langford said. The cause of the fire was under investigation Saturday morning.