Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Suspected US Drone Strike Kills 15 in Pakistan VOA News 17 December 2010 Suspected U.S. missile strikes have killed at least 15 people in the Khyber region of northwestern Pakistan where such strikes are rare. Pakistani officials say American missiles struck two locations Friday in Tirah valley. A day earlier, Pakistani officials said another U.S. missile strike in the area killed seven alleged militants. Most suspected missile strikes have occurred in North Waziristan, an area near the Afghan border where al-Qaida and Taliban militants are believed to be residing and operating. Pakistan formally protests the strikes, but the U.S. claims they are a major weapon in the fight against extremists. A recent review of U.S. strategy in Afghanistan and Pakistan says greater cooperation is needed from Pakistan to deny a safe haven for terrorists in the border region. In another incident Friday, Pakistani officials say militants fired mortar shells at two houses in the northwestern town of Hangu, killing nine people. The region is often the site of sectarian violence. .