Police say the driver of Toms River School Bus 279 was traveling on Old Freehold Road Wednesday morning when the driver smelled something burning.
The driver pulled over and, along with an aide, exited the vehicle.
The Pleasant Plains Volunteer Fire Company responded put out the blaze.
Video posted on the police department's Facebook page shows flames devouring the vehicle before the fire was extinguished.
No children were on board.
The cause of the fire is under investigation.