Fire crews were working Thursday afternoon to put out a fire in a three-story commercial building on the Universal Studios lot.
The small blaze that started at 12:02 p.m. was extinguished a half-hour after crews were dispatched to the scene, according to the Los Angeles County Fire Department.
A cause for the fire remains unknown.
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The building in which the fire started was unoccupied and was the site of demolition work, according to a statement by Universal Studios.
The blaze was said to have been contained in the ducting of a small structure on the roof of the building.
Burbank and Los Angeles County and city fire crews arrived on scene to combat the fire -- 40 firefighters total -- but emergency response was quickly downgraded thereafter.