Suspected Islamic militants on Sunday attacked containers carrying supplies for NATO forces in Afghanistan in south-western Pakistan, officials said, dpa reported.
One vehicle was destroyed and another was damaged in separate attacks in two locations. It was the first attack on NATO supply lines since a recent wave of violence in the country began.
Both incidents took place in volatile Balochistan province, which has seen a surge in violence recently, officials with the province's paramilitary Levies force told dpa from the capital Quetta.
A container carrying a military vehicle was set ablaze by unidentified attackers on a highway in the Bolan district between Quetta and Chamman, the border crossing into Afghanistan.
"Both the container and the vehicle on it were destroyed totally," Zulfikar Ali, a police official in Bolan, said.
Separately, militants on motorbikes fired bullets at a truck hauling an oil tank on the main highway between Quetta and Karachi, Pakistan's largest city, to the south.
The vehicle was damaged, and the militants escaped before the paramilitary troops arrived at the scene, a Levies official Asmatullah said.
There were no casualties and no arrests were made in either incident, he added.
The militant Islamic Lashkar-e-Jhangvi group, which has claimed responsibility for numerous attacks, is active in Balochistan. The Taliban and al-Qaeda-affiliated group has been designated a terrorist group by both Pakistan and the US.
There has been a surge in violence across Pakistan of late, with June's death toll reaching around 200.
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