Two people and their dog escaped a Cranston house fire by jumping out of a window early Thursday morning. Cranston firefighters were called to the Keller Avenue home at about 4:30 a.m. They said the fire was knocked down in about a half hour. An NBC 10 News crew on scene saw damage including busted windows and a hole in the roof. No injuries were reported and the Red Cross was notified. The cause of the fire is under investigation.