No injuries were reported.

Firefighters were called to the restaurant, 140 S. 25th St., at 4:30 a.m.

On scene, flames shot through the roof of the rear portion of the building, Hergenreter reported.

Firefighters made an aggressive attack and contained the fire to that area of the building.

The state fire marshal’s office is assisting in the investigation.

Crews were on scene until 8:30 a.m.