The attack caused an oil leak in the pipeline, which transports 10,000 barrels of oil a day to Yemen's Belhaf export terminal in the Gulf of Aden, the government official told China's state-run news agency Xinhua.
"Armed terrorists of the al-Qaida group placed a roadside bomb under the pipeline in al-Saed region in Shabwa's eastern outskirts. The huge explosion caused a leak in the pipeline," the government source said.
Militant groups have repeatedly tried to attacked Yemen's oil pipelines in recent years. In response, the country has beefed up security measures along its pipelines to protect them from such attacks.
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