The intense blaze at the Leithsville Volunteer Fire Company on Thursday afternoon went to three alarms, bringing firefighters from several surrounding communities to battle the blaze.
A body was found in the rubble late Thursday.
The dump truck apparently struck another vehicle with the impact pushing both vehicles into the firehouse. The victim was in the vehicle hit by the dump truck.
Fire officials identified the driver of the dump truck as 42-year-old Michael Thomas. He was reportedly hospitalized with serious burns to his arms.
The volunteer fire company lost a tanker truck, an engine and a brush truck in the blaze.