Fog engulfs plains of Punjab, Sindh, KP, causes poor visibility.

ISLAMABAD -- Fog has engulfed the plains of Punjab, Sindh and Khyber Pakhtunkhwa provinces as the mercury dropped to chilly weather in most parts of the country on Sunday.

Swat Expressway has been closed from Chakdarra to Swat Toll Plaza and Motorway M-I was closed from Rashkai to Swabi due to poor visibility.

The fog has engulfed Punjab's plains from Lahore to Ahmedpur East including Pindi Bhattian, Sangla Hill, Faislabad, Pensara, Pattoki, Okara, Lodharan, Bahawalpur and Rahim Yar Khan.

Several sections of the motorway's M-II, MIII and M-V sections have been closed due to poor visibility caused by prevalence of thick fog.

Motorway M-II has been closed from Kot Momin to Lahore for vehicular traffic, M-III section closed from Faizpur to Darkhana Interchange and M-IV from Pindi Bhattian...