The Police Regional Office (PRO) 11 reported that the fire started at the unattended bunker and it quickly spread to six other bunkers, including the function hall of the camp.
The fire also damaged 11 long firearms, several magazines, bullets, and two vehicles.
Firefighters estimated the cost of damage at P1.6 million.
Fire investigators from the Bureau of Fire Protection in Calinan District led by SFO3 Andrew Tom said the fire is believed to have been caused by an electrical overloading .
The fire fighters declared a fire out an hour after it erupted at 12:45 p.m.
Photos from PRO 11