Taliban militants on Tuesday shot dead five men and hanged another in a Pakistani tribal area, accusing them of spying for US forces in Afghanistan, a local official said.
Bodies of two men were found dumped on a roadside in Miranshah, the main town of North Waziristan, and four others were spotted by residents in the town of Mir Ali, some 25 kilometres (15 miles) east.
"Taliban militants have killed six people, two in Miranshah and four in Mir Ali," local administration official Qasim Jan told AFP.
Notes found next to the bodies said they were killed because they were "American spies," Jan said. Five of them were shot dead and one was hanged to death, he added.
Pakistan's rugged tribal belt is home to hundreds if not thousands of Taliban and Al-Qaeda linked militants, who fled Afghanistan after the US-led invasion toppled the hardline Taliban regime in late 2001.
The militants have killed dozens of local tribesmen, government officials and Afghan refugees beheading some of them on allegations of spying for Pakistani troops or foreign forces operating across the border in Afghanistan.