Investigators are working to determine the cause of a house fire that started in Ellenwood early Friday morning.

DeKalb Fire-Rescue was dispatched to a home at the intersection of Chimney Ridge Court and Chimney Stone Court around 12:35 a.m.

They found heavy flames and smoke coming from the residence. A car inside the garage was also charred.

Firefighters said no one was home at the time of the fire and the cause is still unknown.

PHOTOS | House fire in Ellenvwood under investigation