The truck carrying supplies for foreign forces in Afghanistan was attacked in Dasht area of Mastung district, 45 km southeast of the provincial capital of Quetta, police said.
The men, who were riding a motorcycle, fired at the truck and two men were hit by several bullets.
The attackers escaped after setting the truck on fire.
Security forces cordoned off the area and launched a search operation to trace the attackers.
The injured men were taken to a nearby hospital.
Islamabad: Armed men attacked and set on fire a NATO container truck in Balochistan province of southwest Pakistan on Friday, leaving two persons injured.
First Published: Friday, August 10, 2012, 14:50