The fire broke out around 1 am at Joe’s Crab Shack in the 4700 block of Northwest Loop 410 near Babcock Road.
According to fire authorities, a San Antonio police officer happened to be driving a car, saw the smoke and called. Upon arrival, firefighters found a fire inside the building.
Officials say someone seems to have thrown a Molotov cocktail through the window and triggered the sprinkler system. The sprinkler system has put out most of the fire.
The restaurant was closed and boarded, so no one was inside and no other nearby building was threatened by fire.
Firefighters said this was the second time a suspicious fire had broke out in a building within the last few months.
Currently, investigators have not been arrested.
