VIDEO: A woman was rescued from a four-alarm commercial fire just moments before flames engulfed the building in downtown Oklahoma City, fire officials said. Crews were called out to check smoke at the structure just before 6:30 p.m. Tuesday evening in the 800 block of NW 4th St. Responding crews reported seeing visible flames and heavy smoke at the vacant structure. We're told a local theater company uses the building for storage. Firefighters had to remove bars from a window in order to rescue a woman inside, Battalion Chief Benny Fulkerson with the Oklahoma City Fire Department said. The victim was taken to a local hospital in an unknown condition to be evaluated. Fulkerson said more than 75 firefighters were on the scene working to extinguish the flames. Investigators have not yet determined a cause for the fire.