FALL RIVER, Mass. (WPRI) — An investigation is underway into the cause of a fire that damaged a Fall River restaurant Tuesday evening.

Firefighters rushed to Marisqueira Azores Restaurant on South Main Street for reports of flames and smoke shooting from the roof.

Acting District Fire Chief David Jennings said the fire significantly damaged the building and displaced about a dozen residents who live in the apartments above the restaurant.

Two firefighters fell down the stairs while battling the flames, according to Jennings. Both suffered injuries that don’t appear to be life-threatening.

The bulk of the fire damage was contained to the restaurant’s kitchen and storage. Jennings said the building also sustained significant smoke and water damage.

The American Red Cross is assisting the displaced residents.