Gunmen attacked and torched several NATO supply trucks near the north-western Pakistani town of Quetta early Wednesday, news reports said.
According to the Express News channel, one of the drivers was killed and at least four trucks carrying fuel set on fire. The Dawn newspaper said in its online edition that 20 trucks had been torched, dpa reported.
NATO convoys have come under attack repeatedly in the past week following a US drone attack in Pakistani territory.
The government in Islamabad closed its borders to NATO supply vehicles on Thursday. International troops in Afghanistan receive most of their supplies via the overland route through Pakistan.