Savannah firefighters were called to the small cinderblock home at 1:53 a.m. Thursday and found flames and smoke pouring from the front of the house. Two adults and four children escaped, but firefighters found two children dead inside.
Savannah Fire and Emergency Services spokesman Mark Keller says all evidence indicates an electric space heater in the home caused the fire.
Firefighters prevented flames from spreading to neighboring homes. Names and ages of the children killed were not immediately released.
Though a winter storm this week largely spared Savannah, residents were urged to stay home to avoid icy roads. Temperatures hovered below freezing overnight Wednesday.