At least one truck caught fire when it was struck by lightning, rescuers said.
The injured were being transported to a nearby hospital, Khan added. Volunteers also joined the search for survivors as authorities dispatched heavy machinery to Torkham to try and remove the massive mudslide, Khan said.
Bilal Faizi, a spokesman for a state-run rescue service, said two bodies were pulled out and eight people were also injured.
“Rescuers are very careful because there is a possibility of another landslide but they are risking their lives to pull out those feared trapped,” he said.
Torkham border crossing is a key trade route between Pakistan and Afghanistan and a location where landslides often block highways, especially in mountainous areas. It is also a major trade route between Pakistan and Central Asian states.
Last summer, devastating floods caused by monsoon rains killed 1,739 people in Pakistan.