Gunmen torched more than two dozen tankers carrying fuel to NATO troops and killed a driver Wednesday, the sixth attack on convoys taking supplies to Afghanistan since Pakistan closed a key border crossing almost a week ago. Islamabad shut down the Torkham crossing along the fabled Khyber Pass last Thursday after a NATO helicopter attack in the border area killed three Pakistani troops. The closure has left hundreds of trucks stranded alongside the country's highways and bottlenecked traffic heading to the one route into Afghanistan from the south that has remained open, the Associated Press reported.
