BOGOTA, Colombia -- (EFE) -- Guerrillas from the Revolutionary Armed Forces of
 Colombia, known as the FARC, blew up an oil pipeline Saturday in the river-port
 city of Barrancabermeja in northeastern Colombia, igniting a massive blaze,
 according to police officials.

 The attack took place on the outskirts of the city, site of the main industrial
 complex of the state-owned Colombian Petroleum Co., which operates the
 pipeline.

 Col. Jaime Eduardo Martínez, the acting police commander in Barrancabermeja,
 said that the explosion ruptured the pipeline, allowing oil to spill out and causing a
 fire with flames swirling 100 feet into the air.

 The fire threatened neighborhoods on the northeastern edge of the city, but was
 brought under control after several hours through the efforts of firefighters,
 company technicians and police, Martínez added.

 He blamed the attack on an urban cell of the FARC, the country's largest rebel
 group, and said that police have yet to determine what type of explosive was
 used.