Police men said that at least 13 people were killed while 72 others were injured when 12 vehicles collided each other on the Islamabad and Lahore motorway on Thursday.
Vehicles that have been an accident involving seven trucks, two coasters and two cars.
A convoy of Tableeghi group was traveling from Peshawar to Raiwind when 12 vehicles crashed into each other on the motorway near the M2 Hafiz Abad because of the thick smog, according to DawnNews.
He said Hafiz Ahmad, PRO Sardar Gul area DawnNews a police officer and taken to a hospital Bundy Bhattian injured.
He confirmed the death of 13 people, and added that he expected the toll to rise.
Six have been identified among the dead as residents of Nowshera.
It has emerged that, due to the thick smog sweeping Punjab, have been closed parts of the motorway outside.
The Prime Minister of Punjab Shahbaz Sharif grief over the incident and announced that people will get free treatment.