Prescott Fire crews battled a structure fire Monday night on Granite Street. Officials say crews were called to the area of the 400 block of South Granite Street at around 8:45 p.m. When units arrived they found a 450 square-foot shed that was fully engulfed in flames. Crews quickly put the fire out to help prevent the fire from reaching the 15-hundred square foot home next to it or have it grow into a wildfire. The fire was put out and the scene cleared up just before midnight. There were no injuries reported and the cause of the fire is not known.