Suspected militants in south-western Pakistan raided a convoy carrying supplies for NATO troops in Afghanistan and torched 29 oil tankers on Saturday, government officials said.
The pre-dawn attack took place in Boland district of Baluchistan province as the lorries were heading from the southern port city of Karachi towards the Afghan province of Kandahar, DPA reported.
"Between 15 and 20 attackers reached at the Sarawan hotel where the oil tankers were parked and opened fire. They also fired two rockets at the vehicles," district civil administrator Abdul Mateen said.
"The tankers were parked very close to each other and the fire engulfed all the vehicles very quickly," Mateen said. "Our forces are pursing the fleeing attackers and hopefully will reach them soon."
It was the fifth major attack on NATO convoys since Pakistan closed the key Torkham border crossing to protest a US helicopter attack at a border post that killed two Pakistani troops and wounded four others.
The US government apologized for the accident, calling it a "mistake," but the Torkham crossing remains closed.
However, NATO supplies are allowed to pass through another border crossing in Baluchistan province.
The Taliban claimed responsibility for four of the five attacks that destroyed more than 150 lorries carrying supplies for NATO.
Around 80 per cent of NATO supplies go through Pakistan.