The Victorville Fire Department responded to three separate structure fires Monday night and into Tuesday morning. The first fire occurred at 8:53 p.m. on Nov. 18 in a commercial building in the 15000 block of 7th Street near the Gridiron Pizza. According to Victorville spokeswoman Sue Jones, a fire occurred in the main electrical room in the rear of the structure. Victorville Fire crews contained the fire to the electrical room. The fire involved electrical components and required the power to the entire building be shut off by Southern California Edison. Smoke extended into other occupancies of the strip mall. A second fire occurred at 12:55 a.m. Nov.19 in a single-story residence at the corner of Verde and Center Streets, across from Center Street Park.