UPDATE: A second alarm fire damaged Moe's Southwest Grill in Hixson Sunday morning.

Around 4:00 am, Chattanooga firefighters were called to the restaurant, which is located in strip mall in the 5500 block of Highway 153 after smoke was reported coming from the building.

A second alarm was called which brought the total number of fire companies to 12, a CFD spokesperson explained.

Heavy smoke was coming from the roof when the first firefighters arrived on scene.

Firefighters forced their way into the building and found a fire near the back. They were able to put it out quickly.

The cause of the blaze is under investigation.

Other businesses in the strip mall were not damaged. Damage to Moe's Southwest Grill, however, is estimated at $400,000, according to a CFD spokesperson. 

Stay with Channel 3 for the latest on this developing story.