NASHUA -- Firefighters quickly extinguished a blaze Wednesday morning in a 1½-story, two-bay detached garage at 24 Bolic St.

The fire broke out just before 10 a.m. and was reported by David Creed, the owner of the property. His home, about 20 feet from the garage, was not damaged.

Heavy flames were coming from the bays and had extended to a second-floor storage area when the first firefighters arrived on the scene.

Fire crews from the Lake Street station put the blaze out in about 25 minutes.

Dense fog made it difficult for the arriving firefighters to size up the blaze because the building was set back from the main road and because of various flammable liquids and vehicles stored inside, according to a news release. The scene also was icy due to the weather.

Flames compromised the floor joists, making the second floor unstable. The cause of the fire remains under investigation by the city's Fire Marshal's Office.