QUETTA Two Nato oil tankers were burnt while a person sustained injuries in an attack at Manghochar area of Kalat, around 150km away from the provincial capital. According to the official sources, the tankers were heading towards Kandahar from Karachi, carrying fuel for the Nato forces in Afghanistan, when armed gunmen opened indiscriminate fire, resulting in multiple bullet wounds to a person. Later on, the attackers set the tankers on fire and escaped from the site. Both tankers were gutted in the fire while thousands of litres fuel spilled over the ground. Soon after receiving information, the Levies personnel reached the site and shifted the injured to a local hospital for treatment.