A building’s sprinkler system did its job preventing a fire from spreading and allowed the Belmont Fire Department to extinguish a one-alarm blaze that damaged three businesses in Cushing Square around 8 p.m. Sunday, Jan. 14.

A fire alarm was activated at 8:23 p.m. at 448 Common St. in what is called The Spirited Gourmet Building, said Belmont Fire Chief David L. Frizzell at the scene. When fire equipment arrived two minutes later, the fire control panel indicated a blaze in Pilgrim Shoe Repair.

Upon gaining access, crews discovered the store full of smoke and small fire in the back corner of the operation.

“The sprinkler’s worked controlling the fire long enough for our personnel to knock it down,” said Frizzell. Fire crews spent nearly two hours searching for “hot spots” in the walls and ceiling. Besides the Pilgrim, water damage was reported in The Spirited Gourmet and the Fred Astaire Dance Studio.

An investigation into the cause of the fire is underway.