It happened around 2:17 p.m. on the 600 block of Jarvis Road in the Sicklerville section of the township.
Chopper 6 was over the scene as firefighters worked to contain the blaze.
Authorities say one person has died. A 27-year-old man was transported to an area hospital for burn injuries.
Police have not identified the victim who died.
The cause of the fire remains under investigation.