Tucson Fire Dept. fights structure fire early Sunday

Tucson Fire Dept. fought an early morning structure fire after multiple reports of flames rising from the building.
Officials say 911 received multiple calls around 5:40 a.m. about fire rising from a building in the 400 block of East Congress.
We’re told crews found the fire in a exterior stairwell with access to the inside of the structure.
There were no reports of injuries and the building was unoccupied.
The cause and origin of the fire is still under investigation.
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