MIRANSHAH (AFP) - Militants have killed four men, beheading two and dumping the bodies in North Waziristan after accusing them of spying for the United States, officials said Friday. The bodies were found by the side of a road in Khadi village, 25 kilometres east of Miranshah, the main town in the tribal North Waziristan region near the Afghan border, local police officer Kalam Khan told AFP. He said that two bodies were headless, while the remaining two had multiple bullet wounds. Two of the men were Afghans while the others were local tribesmen who had been kidnapped from Miranshah three weeks ago. A local intelligence official said that a note found near the bodies said all those spying for the US and Pakistan will suffer the same fate.