ISLAMABAD, Pakistan (CNN) -- Taliban militants have shot dead two men in Pakistan's ungoverned tribal region, dumping their bodies in a village Monday with a note saying they were spies for the United States.
Taliban spokesman Qari Ahmadillah told CNN the men were killed because militants had determined they were spies. A Pakistani intelligence official confirmed that two bodies had been found in the village of Mir Ali in North Waziristan, but would not comment on the Taliban's accusations.
In recent weeks, the Islamic fundamentalist militia has killed several men, after accusing them of providing information to Pakistani officials or to U.S. forces operating across the border in Afghanistan.
North Waziristan is one of seven districts within Pakistan's lawless tribal region where U.S. officials say the Taliban have set up a haven.
The region has seen a sharp rise in the number of aerial attacks carried out by unmanned drones on what are believed to be Taliban targets. The United States has the only military with such capabilities in the area.
Some of the attacks have yielded high-profile targets, such as a New Year's Day missile strike that killed Usama al Kini -- the operations director for al Qaeda in Pakistan and the suspected mastermind behind the September 20 suicide bombing at the Marriott hotel in Islamabad that killed 53 people.
Analysts say the success of the missile strikes is due in large part to ground intelligence that local residents in the tribal regions provide to U.S. officials.