Authorities are trying to determine the number of casualties, said Maj. Gen. Athar Abbas, a spokesman for the Pakistani Army. "Right now, the area has been cordoned off," he said.
North Waziristan is one of seven districts in Pakistan's tribal region along the Afghan border and widely believed to be a haven for the Haqqani network and other militant groups that are fueling the insurgency in Afghanistan.
The attack Friday targeted an area of Miranshah, the main town in North Waziristan.
The United States rarely acknowledges its drone program publicly, although President Barack Obama commented on such strikes in January and Defense Secretary Leon Panetta acknowledged the use of CIA predator drones in the region last year. Read More