Special to WorldTribune.com

CAIRO — Yemen’s oil pipeline continues to come under attack by tribes.

On Nov. 29, opposition tribal fighters bombed Yemen’s main oil export pipeline.

Sources said the attack again blocked the flow of oil to Yemen’s oil terminal at Ras Issa along the Red Sea.

“Every time the tribes want more money or prisoners released they blow up the pipeline,” a source said.

The pipeline, which carries crude oil from the central province of Maarib, has been attacked on a nearly monthly basis.

The sources said the tribes have also joined Al Qaida in attacking the export pipeline.

  Al Qaida, Maarib, opposition tribes, Ras Issa, Red Sea, Yemeni oil pipelines bombed frequently by Al Qaida