At least six people, including three soldiers, were killed Saturday when a suicide bomber rammed his explosive-laden car into their convoy in Pakistan's restive tribal region along the Afghan border, an army spokesman said, dpa reported.
"A suicide attack on army convoy at around 11:30 PST (05:300 GMT) at Eisha post while it was moving from Mir Ali area to Miranshah in tribal district of North Waziristan," Major Murad Khan told Deutsche Presse-Agentur dpa.
"Three soldiers and three civilians died in the attacks while five soldiers were injured," he added.
However, a local security official claim the death toll was as high as 10.
Four army vehicles were destroyed and several other damaged in the blast. Security forces cordoned off the area and military helicopters were evacuating the injured to an army hospital in Bannu, said a security official who spoke on the condition of anonymity.
Pakistan's tribal areas are believed to have sanctuaries of al-Qaeda and Taliban militants launching cross border attacks on US-led international forces into Afghanistan.
The country has deployed around 120,000 troops along the border to stop militants' movement across the frontier, with little success.