Yemeni security and tribal sources say an apparent U.S. drone strike has killed at least three suspected al-Qaida militants in the north of the country.
The sources said several drone-fired missiles struck at least one vehicle carrying the militants in the northern province of al-Jawf on Sunday.
U.S. drones have repeatedly targeted al-Qaida's Yemen-based affiliate in recent years. Washington considers al-Qaida in the Arabian Peninsula to be one of the world's most dangerous terrorist groups.
U.S. President Barack Obama acknowledged the use of drones in a policy speech on counter-terrorism last month, saying the secretive military tactic "narrowly" targets al-Qaida and its affiliates. But, Obama also said drones are used only in "heavily constrained" circumstances because such U.S. action in foreign lands impacts public opinion overseas and risk creating more enemies of the United States.