Fire Department spokeswoman Capt. Rita Burris said in a news release that investigators say arson is to blame for Wednesday night's fire at the Nottingham Village Apartments.
Burris said a mother and her infant child were killed. She said the injured included three people who jumped from third-floor balconies and one firefighter.
Firefighters also rescued four others from balconies.
Burris says investigators believe the fire started in a first-floor hallway and quickly spread to the two upper floors.
Burris says the fire caused about $1 million in damages.
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