QUETTA - Some unknown assailants ambushed two Nato containers in Dhadar Sunday; however, no loss of life was reported in the incident.  According to Balochistan Levies officials, two Nato containers were on their way to Afghanistan from Karachi when a group of assailants on motorbikes opened fire at them. “They torched one of the containers and partially damaged another,” the officials said adding that a container was completely gutted while fire-tenders managed to save another.