Pakistani government and intelligence agency officials said that U.S. drones fired six missiles into a Pakistani Taliban training camp near the Afghan border on Wednesday, killing 10 people. According to Reuters, they said that the pre-dawn attack was in the South Waziristan region, in a stronghold of Pakistani Taliban leader Baitullah Mehsud.

The United States, grappling with an intensifying Afghan insurgency, began stepping up attacks by pilotless drone aircraft on northwestern Pakistani militant enclaves a year ago despite the complaints of Pakistan.