A warehouse containing grocery items and appliances burned down in Barangay Bagbaguin, Valenzuela City, on Saturday night, August 5.
Two workers were reportedly injured.
A worker told the investigators that he heard an explosion shortly before the fire broke out at about 6 p.m.
According to the Bureau of Fire Protection (BFP), the fire reached its fourth alarm about 7:12 p.m., causing firemen from adjacent cities to respond to prevent the flames from reaching the area where alcoholic beverages were stored.
"It would be a bigger problem if the fire reached the flammable alcoholic beverages. It’s a good thing that the area was saved," BFP inspector Danielle Bayla said.
The fire was declared under control at roughly 8:50 p.m., and was extinguished before 10 p.m.
Arson investigators have yet to identify the source of the incident and the estimated amount of damage.
