One firefighter was injured in a fire early Tuesday at a recording studio in the Old Irving Park neighborhood on the Northwest Side.
Crews responded about 3 a.m. to the fire in the 4200 block of North Knox, according to Fire Media Affairs Director Larry Langford. A firefighter suffered minor injuries.
Firefighters and employees could be seen outside Fort Knox Studios, 4255 N. Knox, as crews worked to put out the fire inside the building.