SLIPPERY ROCK TWP — Fire Sunday afternoon gutted a cottage-style home south of Rock Falls Park in the township.

The occupants, whose names were not immediately available, were home when the fire broke out about 3:30 p.m., but no one was injured, authorities said.

It appeared the blaze at the single-story house on Lutes Lane, about a half mile west of Route 173, started in the basement, fire officials said. Flames spread up the walls and into the attic, officials said.

About two dozen firefighters from three departments got there and quickly made an interior attack, but the fire had too much of a head start.

By the time the blaze was extinguished, the inside of the home was destroyed, authorities said. The home’s exterior was largely in tact.

The cause of the fire was not known. Chief Dave Taggart of the Slippery Rock Township Fire Company did not return a telephone call this morning.

Assisting the Slippery Rock fire company were firefighters from Harrisville and Unionville.

Fire crews remained at the home until about 6 p.m.