SANAA, Yemen -- Two U.S. drone strikes killed a total of nine suspected al-Qaida militants Thursday, a Yemeni military official said, the sixth and seventh such attacks in less than two weeks as the Arab nation is on high alert against terrorism.
The uptick in drone strikes signals that the Obama administration is stepping up its efforts to target Yemen's al-Qaida offshoot -- al-Qaida in the Arabian Peninsula -- amid fears of attacks after the interception of a message between its leader and the global leader of the terror network.
Since July 27, drone attacks have killed 31 suspected militants, according to an Associated Press count provided by Yemeni security officials.
The Yemeni military official said the first drone attack killed six alleged militants in central Marib province, while the second killed three more in the al-Ayoon area of Hadramawt province in the south. Both airstrikes targeted cars, added the official, who spoke on condition of anonymity because he was not authorized to talk to the media.
The high alert in Yemen came after authorities revealed an al-Qaida plot to target foreign embassies and international shipping lanes in the Red Sea.
The U.S. and Britain evacuated diplomatic staff this week after learning of a threatened attack that prompted Washington to close temporarily 19 diplomatic posts in the Middle East and Africa.
While the United States acknowledges its drone program in Yemen, it does not confirm individual strikes or release information on how many have been carried out.
The program is run by the Pentagon's Joint Special Operations Command and the CIA, with the military flying its drones out of Djibouti, and the CIA out of a base in Saudi Arabia.
In the capital of Sanaa, an Associated Press reporter said a drone buzzed overhead for hours Wednesday and early Thursday, leaving residents anxiously wondering about its target and whether al-Qaida militants were about to strike in the city.
Thursday's first reported drone attack hit a car carrying the suspected militants in the district of Wadi Ubaidah, about 109 miles east of Sanaa.
Badly burned bodies lay beside their vehicle, according to the official. Five of the dead were Yemenis, while the sixth was believed to be of another Arab nationality, he said.
Yemeni authorities said Wednesday they uncovered an al-Qaida plot to target foreign embassies in Sanaa and international shipping in the Red Sea.