It was just before 1am when firefighters once again found themselves at the Fish Ranch store on Larkwood at the Southwest Freeway. Firefighters found flames and heavy smoke coming from the building.
There wasn't anyone inside and crews were able to quickly put out the fire.
Investigators don't know what started it, but they are calling it suspicious, especially since they put out another fire at the same business around the same time last night.
"Last night's fire is still under investigation and based upon what we found here tonight, we decided to call arson out on this one as well," said Houston Fire Department District Chief Mark Donavon.
One firefighter was taken to the hospital to be treated for dehydration.
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