Fire officials are looking into a blaze that tore through the old Las Vegas Zoo building.
KSNV-TV reports crews were dispatched at about 8:15 p.m. Saturday to the property near Rancho Drive and Melody Lane.
Firefighters say 50-foot tall flames were shooting out from the one-story structure through the roof.
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Crews from Las Vegas and North Las Vegas brought the fire under control in about 15 minutes.
No injuries were reported.
There were no nearby buildings where the fire could spread to.
Fire investigators say the damage is roughly $50,000.
The cause has yet to be determined.