Pakistani officials say pro-Taleban militants have beheaded a taxi driver in a northwestern tribal region after accusing him of being a U.S. informant.

The officials say the taxi driver's headless body was found Tuesday in South Waziristan. He had been missing since last week.

Militants accused the man of working with U.S. forces across the border in Afghanistan.

He was the second taxi driver to be killed in the Pakistani tribal region this month in similar circumstances.

Pro-Taleban militants have been blamed for killing scores of local tribesmen accused of helping Pakistani or U.S. forces. Pakistan has deployed 80,000 troops along its border with Afghanistan to root out foreign militants and their local allies.

Some information for this report was provided by AFP and AP.