Firefighters consider the fire to be suspicious, officials say.
The former owners of the property, located at 340 47 th St N, are deceased and the building was owned by the back.
No one was there by the time fire crews arrived. The fire was extinguished quickly, but the bottom floor of the duplex sustained major damage.
No injuries have been reported.
Copyright 2012 Scripps Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
Hillsborough County officials released a 25-page report Wednesday detailing the efforts they went through to save Jeff Bush's life after he was swallowed up by in sinkhole while asleep in his Seffner home.