Armed tribesmen blew up an oil export pipeline in the early hours of Wednesday in the Marib province of Yemen. This is the fifth time the pipeline has been bombed this November. Local sources in Marib told Arabstoday that armed tribesmen attacked the pipeline transporting oil from the Safer oilfields to be exported from the Red Sea port of Ras Isa in the west of Yemen. Sources added that the explosion occurred in the same area as another a few days ago, prompting the Yemeni army to conduct a military operation to arrest those responsible. The operation resulted in clashes in which two officers were killed and a number of soldiers injured. Yemen’s oil and gas exports were halted repeatedly over the past two years as a result of pipeline explosions by local armed tribesman who made demands that the government refuses to meet.