HAMPDEN, Maine — A fire that broke out in the garage of a home on Dudley Road Saturday evening quickly spread into the house and was noticed by a couple of people on a boat enjoying the Penobscot River, according to an eyewitness.

“We were down by the river and a couple of guys in a boat said, ‘Do you know that house is on fire,’” Shirley Lowery of Dedham said of the fire.

Lowery was staying with her sister next to where the fire broke out and ran to the burning house at 43 Dudley Road, and she saw that the homeowner was outside with his adult son.

A 911 call reporting the fire came in at 6:42 p.m., a dispatcher from Penobscot Regional Communications Center said Saturday. The fire was knocked down within an hour by crews from the Hampden Fire Department, assisted by firefighters from Bangor, Hermon, Holden and other towns.

“The homeowner was able to get the dogs out,” Lowery said of the homeowner’s three large labradors dogs.