A DeKalb County firefighter was injured early Friday morning while battling a house fire. It happened at a home on Hardee Road in Chamblee. Officials say the house is a total loss. The homeowner was not inside the home at the time of the fire. He was sleeping in his car after power went out around 2 a.m. The fire happened somewhere around 5 a.m. The firefighter fell over a hose while trying to put out the flames. He is expected to be okay. The cause of the fire is unknown at this time and remains under investigation.