Pakistani officials said that 20 NATO tankers were set ablaze on Thursday after a rocket attack on a temporary NATO trucking terminal in Quetta. The tankers were carrying fuel for U.S. and NATO troops in Afghanistan. Senior police official Malik Arshad said the number of casualties is not yet known because “the blaze is so huge.” No group has claimed responsibility for the attack so far, but the Taliban has carried out similar attacks in the past. Thursday’s attack came just a few weeks after NATO troops killed 24 Pakistani soldiers in a deadly strike. That caused Pakistan to close its border crossing to NATO troops, and as result, tankers have been using temporary terminals that are poorly guarded.