The yesterday evening strikes came as Washington revealed that US forces have carried out more than 120 air strikes against jihadists in Yemen this year as part of a long-running campaign that has intensified since President Donald Trump took office.
Saudi-born Abu Hajar al-Makki and three other AQAP militants were killed when a drone blew up their vehicle in the Wadi Obeida district of Marib province, east of the capital Sanaa, tribal sources said.
Washington says its strikes have killed a number of senior AQAP figures in recent months, including Mujahid al- Adani, who was killed on November 20.
It considers AQAP to be the worldwide jihadist network's most dangerous branch.
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The Sunni extremist group has thrived in the chaos of nearly three years iof civil war between the Saudi-backed government and Shiite rebels who control the capital.
In addition to the air strikes, mostly carried out by drones, US special forces have conducted a number of ground raids against AQAP.