At least four people were killed and three others injured when four loaded containers collided on Indus Highway in Karak on Sunday morning. Local police informed the mishap occurred on Indus Highway where two loaded trucks and a container-carrying long vehicle collided due to break failure of a truck. The injured have been shifted to district headquarters hospital Karak. Rescue teams and local police reached the scene of the incident and shifted the dead and injured to District Headquarters Hospital Karak. Two, who were killed as identified as Ghulam Rasool son of Hayatullah, resident of Charsadda and Bakhtiyar Khan, son of Noor Ali, a resident of Razmak.