ISLAMABAD, Oct. 6 (Xinhua) -- Unidentified gunmen in Pakistan' s southwest region attacked a container, carrying supplies for NATO forces in Afghanistan, and injured its driver and his assistant, police in the region said Saturday.
The driver and his assistant received bullet injuries in Mastung area of Balochistan and were shifted to Quetta, the provincial capital.
Officials said that the container loaded with goods was on its way from Karachi to Afghanistan when unknown gunmen riding a motorcycle opened fire at the container.
The assailants also set the container on fire. Later, the attackers managed to escape.
The local militia force rushed to the site of attack and conducted a search operation but no one was arrested.
The police also registered a case against unknown attackers and started investigation into the incident.
No group claimed responsibility. Taliban militants are blamed for such attacks.
Some 70 percent supplies are reportedly transported for nearly 150,000 US-led NATO troops in Afghanistan.