VIDEO: An early morning apartment fire has displaced six people and destroyed five to six cars in Phoenix, the city's police department said. Phoenix and Glendale firefighters responded to the scene near 12th St & Maryland Friday morning, the department said. Heavy fire was coming from a single-story apartment when crews arrived. Firefighters discovered that the fire had spread to the back of the complex and had engulfed five or six cars, the department said. More units were requested and crews were able to aggressively attack the fire. 12 News has obtained security footage showing the moments before the fire engulfed the apartments and cars. A neighbor said he believes the footage shows the person responsible for setting the fire. Fire officials are still working to determine the cause of the fire.