A single-family home was destroyed by fire Sunday morning in Scarborough, a fire official said.

The fire broke out in the mud room of the home on Beech Ridge Road about 9:30 a.m. The owner’s dog alerted her to the blaze, which spread to the house and a detached garage.

No one was hurt. The dog was unharmed but a cat died in the fire, said Scarborough Fire Capt. Andrew Clark.

The cause of the fire, which is not suspicious, is still being investigated.

It took about 40 firefighters from Scarborough, Buxton, Biddeford and Gorham about 30 minutes to put out the fire.