美无人机在巴基斯坦击毙四名激进分子

A U.S. drone strike killed four suspected militants Sunday in Pakistan's northwest tribal region, with Islamabad's air force launching other deadly attacks near the Afghan border.

Officials in Pakistan say two missiles were fired from the unmanned U.S. aircraft. The attack killed two Arab militants and two of their local allies after they parked their vehicle near the house of militant commander Ainullah and were drinking water as they stood on the road.

The U.S. drone strikes were resumed in Pakistan in June after a six-month hiatus. At the same time, Pakistan launched a military operation in North Waziristan, with the army saying it has killed more than 1,000 militants so far.

On Sunday, the Pakistani air force said its airstrikes destroyed five insurgent hideouts, killing 15 militants.