SHELTON — An early-morning Howe Avenue building fire caused “significant” damage to the basement of the businesses, fire officials said.

Deputy Fire Chief Paul Wilson said the blaze was reported at 3:40 a.m. Monday at the building that houses Liberty Tax and Shelton Wine & Spirits on the first floor. No injuries were reported, but Wilson said one firefighter was transported to the hospital for evaluation. The building will be closed for “a short period,” Wilson said.

When firefighters arrived, Wilson said “smoke was visible from the front of the building, specifically Shelton Wine and Liquor.”

Wilson said crews from the Shelton and Derby fire departments managed to contain the blaze to the basement.

Wilson said, while conducting overhaul of the structure, several pockets of fire were located and extinguished. Some 70 firefighters, under the command of Shelton Fire Chief Francis Jones, contained the fire in 40 minutes.

“There is extensive smoke damage to the first floor of Shelton Wine and Liquor as well as Liberty Taxes, and significant fire damage in the basement of the businesses,” Wilson said. “There was minor smoke damage to the spaces on the second floor.”

Ansonia Fire Department provided a ladder truck and Nichols Fire Department assisted with scene lighting and a cascade system to fill air bottles.