NORTHAMPTON, Mass. (AP) — Four people were taken to the hospital after a three-alarm fire destroyed a Northampton home.

Fire Chief Brian Duggan says the first calls came in at about 8 p.m. Sunday and by the time firefighters arrived, the single story, wood-framed home was fully involved.

The residents had already escaped.

Duggan says two firefighters sustained minor injuries — one for heat and the other for a fall.

Two people he described as civilians were also hospitalized for non-life threatening injuries.

Duggan estimated the cost of damage as high as $1 million when factoring in the cars that were destroyed, and the contents of the house.

Firefighters from Hadley, Amherst, Easthampton, Williamsburg, Westhampton and Greenfield also responded.

The cause is under investigation.