NEW : Three strikes occur in the Khyber Agency . Suspected militants are killed in one of the Three districts of Afghanistan 's tribal region . In the past , the strikes have focused on the Tirah valley . Thursday marks the third suspected drone strike in CNN .
NEW : Three strikes occur in the Khyber Agency . Suspected militants are killed in one of the seven districts of Pakistan 's tribal region . In the past , the strikes have focused on North and South Waziristan . Thursday marks the first suspected drone strike in the Khyber Agency .