The Reno Fire Department responded to a roof on fire in the area of Grove Street and Flagg Drive on Monday night.
It happened around 7:20 p.m., according to a spokesperson for the Reno Fire Department.
The fire happened in an abandoned building, and the cause is unknown.
Investigators are looking into whether it was caused by a homeless warming fire.
Nobody was in the building when firefighters arrived, and nobody was injured.
