LOS ANGELES, California (X17online) - The fire that destroyed thousands of videotapes and numerous sets at Universal Studios on Sunday was caused by a roofing crew and determined to be an accident.

Los Angeles County fire officials said that the fire was started by "a roofing crew in the process of roof repair using new composite materials and open flame torch" who were working on the studio's New York Alley. The crew finished their work at approximately 3am, "maintained a fire watch for one hour" and then took a break. While the crew was on break, a security guard noticed the fire and alerted Universal who then called the Fire Department. Due to the "highly combustible materials, this fire quickly spread throughout the building and other adjacent buildings on the lot." Wind was not a factor in the blaze, and fortunately, no one was hurt.