Al-Jazeera Video: Supplies for troops in Aghanistan are under threat - 18 Dec

"Taliban fighters in Pakistan have fired at a convoy of trucks transporting supplies to Western forces in Afghanistan. It is the latest in a string of attacks along the treacherous Khyber Pass.

Attackers have torched hundreds of trucks along the mountainous route - the most important supply line for Western forces - in recent weeks.

Kamal Hyder reports from Peshawar. "