An early morning fire at a Pasco home is being investigated as arson according to Pasco firefighters. Investigators said they responded to a home in the 600 block of Borth Cedar Road in the early morning hours on Thursday. Fire crews said the six residents of the home were able to get out safely and a neighbor doused most of the flames with a garden hose. Fire crews worked to put out the rest of the flames. Crews said no one was injured in the blaze. The cause of the fire is unknown at this time, and investigators said the fire started outside the home at the front door.