SAN JOSE (CBS SF) — An early Tuesday morning fire erupted in the second story of a San Jose Wienerschnitzel fast food restaurant, heavily damaging the historic A-frame before it was brought under control.

Crews responded to the Story Rd. location to reports of smoke and fire at around 4 a.m. Arriving fire crews found heavily smoke pouring out of the roof of the building.

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San Jose Fire Capt. Brian Palodichuk said the blaze appears to have started in a second floor storage area.

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“It was a little stubborn at first,” he said of the blaze.

The fire was knocked down within an hour, but the A-frame design of the building was making it hard to completely extinguish hot spots.

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There have been two previous fires at the building so arson investigators have been called to the scene. A cause was still under investigation There were no reports of injuries.