Dense fog in Punjab and Peshawar division in Khyber Pakhtunkhwa affected traffic on roads and highways on Friday morning.
The traffic on National Highway at Okara, Sahiwal, Patoki, Habibabad and Renala affected due to intense foggy conditions.
On the other hand, the visibility range at Ferozwala, Kala Shah Kaku, Muridke and Shekhupura lowered to 50 meters.
A spokesman of the Motorway Police said that Multan-Khanewal section of the motorway has been closed for traffic due to fog in Punjab.
The motorway from Lahore to Shekhupura and Kot Momin has also been closed for all traffic due to poor visibility, motorway police statement said.
Motorway-IV from Pindi Bhattian and Faisalabad to Gojra has also been closed due to dense fog in Punjab.
The motorway section from Peshawar to Rashkai in Khyber Pakhtunkhwa, has also been closed for traffic. The motorway police has advised commuters to use fog lights and avoid unnecessary travel.
Motorway police can be contacted at helpline 130 for any travel guidance, the police statement added.
In winter, the plains of Punjab engulfed by a thick layer of fog affecting daily life and vehicular traffic. Poor visibility makes travel on motorways dangerous and also affect the air traffic.
According to experts the thick hazy layer understood to be winter’s fog is a noxious smog carrying serious health hazards.