A woman was killed and a man was taken to a hospital after a house fire early Friday morning in Cobb County, authorities said.

The fire broke out on Cooper Lake Court shortly after midnight, according to Smyrna fire department spokesman Tommy Bates. Neighbors told Channel 2 Action News that a brother and sister lived in the home together.

“They were very kind, they just kind of kept to themselves because they were getting older,” neighbor Tom Murphy said.

Firefighters arrived to find heavy smoke and fire coming from the home, Bates said. He confirmed that one victim was found dead inside and the other suffered injuries from smoke inhalation. Their names have not been released.

Little fire damage could be seen from the exterior of the home, and Bates said investigators are working to determine the cause of the fatal incident.

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