PITTSFIELD — Two families were displaced late Monday afternoon following a smoky fire on Elm Street.

Around 5:30 p.m. city firefighters were called to 164 Elm St. where they found heavy smoke in the kitchen of the first-floor apartment in the two-and-half story home next to Elm Street Martial Arts.

The fire was under control in under 30 minutes, destroying the kitchen and spreading smoke throughout the first floor, fire officials said.

The American Red Cross was finding temporary shelter for a total of seven people, including two children, none of whom were home at the time.

A dog on the second floor was rescued.

The cause of the fire remains under investigation, but it appears to be accidental, according to fire officials.