Pakistan, Aug. 31 -- At least four people were killed and six others injured in a collision between the passenger coach and a dumper truck near Tunnel No 3 on Swat Expressway in Malakand, Rescue 1122 informed on Sunday morning. Rescue 1122 said that soon after receiving information about the accident, medical teams of Rescue 1122 Malakand reached the scene along with ambulances. The Motorway Police said the accident occurred due to the negligence and carelessness of the Hiace driver. The passenger van was traveling from Mardan to Dir when it smashed into the dumper in high speed. Those died in the accident included Aziz Ahmad (50), son of Mubarak Shah, resident of Bajaur; Faiz Muhammad (69), son of Jahan Syed, resident of Kushshan, Hamida...