A US drone attack destroyed a vehicle in Pakistans tribal district of North Waziristan on Friday, killing at least three suspected militants, security officials said. Two security officials said the aircraft fired two missiles into the vehicle in the Mir Ali area of the district on the Afghan border, considered Pakistans premier bastion of Taliban and al Qaeda-linked militants. The identities of the dead were not immediately clear, nor whether they included any high-value targets. Two missiles were fired on a vehicle. So far three militants are confirmed killed in this attack, a senior Pakistani security official told a foreign news agency on condition of anonymity.