NEW : A U.S. official disputes a Pakistani claim that civilians died in a drone strike . U.S. military personnel depart a Pakistan base , a Pakistani official says . The militants were local Taliban members from Orakzai agency , another district of Pakistan 's tribal region , who were trained for war , the officials said . The Associated Press contributed to this report. The news comes amid public furor over civilians killed in drone strikes .
NEW : A U.S. official disputes a Pakistani claim that civilians died in a drone strike . U.S. military personnel depart a Pakistan base , a Pakistani official says . The Associated Press contributed to this report. The news comes amid public furor over civilians killed in drone strikes .