The blast victims were identified as Ryan Manapao, 30; Eddie Maloloy-on Jr., 20; and Jonathan Lape, 41 all fishermen from Barangay Buyo; and Roque Mar Guazon, 19, also a fisherman from Barangay Pasig, all from the same town, according to Major Maria Luisa Calubaquib, Bicol police spokesperson.
Investigators said the victims were making homemade dynamite explosives at the residence of Maloy-on when it exploded around 2:30 p.m. in Sitio Ipil of Buyo.
Responding authorities said the explosion killed the victims instantly.
The use of homemade dynamite is a widespread illegal fishing practice by fishermen in Masbate, police said.
lzb