The Colombian Army announced on Sunday it had found an antipersonnel mine factory operated by guerrillas in the northeastern region of Arauca, seizing a half ton of explosives and a number of devices.
Troops occupied the factory Saturday in the rural area of La Holanda, some 350 kilometers north of Bogota.
The factory allegedly belonged to the Revolutionary Armed Forces of Colombia (FARC), the largest rebel group in the country. Some 124 "improvised explosive devices," 450 kilograms of explosives and 150 kilograms of shrapnel were found, Army sources said.
A total of 470 electrical detonators, 1,200 meters of explosive cord and six communication kits were also seized.
Antipersonnel mines or similar devices are forbidden by an international treaty because their enormous destructive power can cause heavy civilian casualties.