The Knoxville Fire Department is investigating the cause of an early morning house fire in North Knoxville.

Crews responding to Cedar Heights Road after someone driving by called to report the fire then knocked on the door of the home, a woman and her dog were inside and they made it out safe.

The caller used a water hose in an attempt to put out the fire and firefighters say it likely kept the fire from spreading before they arrived.

The back of the home has sustained moderate fire damage and smoke damage throughout the house.

The home did not have any working smoke alarms.

The Knoxville Fire Department is investigating the cause of an early morning house fire in North Knoxville.

Crews responding to Cedar Heights Road after someone driving by called to report the fire then knocked on the door of the home, a woman and her dog were inside and they made it out safe.

The caller used a water hose in an attempt to put out the fire and firefighters say it likely kept the fire from spreading before they arrived.

The back of the home has sustained moderate fire damage and smoke damage throughout the house.

The home did not have any working smoke alarms.