Unknown gunmen have set ablaze at least two NATO oil containers in Mach near Quetta on Saturday.

The trucks carrying fuel for the NATO-led International Security Assistance Force (ISAF) in Afghanistan, were heading toward Chaman when unidentified gunmen opened fire on them in Bolan district.

The assailants fled after the attack, and there were no casualties in the incident.

Both oil tankers were destroyed during the attack. No group or individual has yet claimed responsibility for the attack.