M-2, M-3 and M-4 sections of the motorway were completely closed for traffic, while M-11, connecting Lahore to Sialkot, was closed for heavy vehicles.
Similarly, fog also resulted in slowing down the pace of traffic on highways.
Dense fog has become a daily feature these days, disrupting the flow of traffic on roads.
Fog is a phenomenon that usually develops in the plains of Punjab, KP and Sindh in December and January.