Pakistan's Punjab declared a health emergency due to toxic smog on Friday, banning construction, shutting schools for another week and moving universities online, with a three-day lockdown possible, the province's senior minister said on Friday.

With smog intensity escalating in Lahore at the end of October, affecting its 13 million residents, the Punjab government imposed a “green lockdown” and set up a “smog war room.”

Pakistan's most populated province of Punjab on Friday extended school closures in smog-hit major cities by a week, as the country battles record

LAHORE, Pakistan A Pakistani province declared a health emergency Friday due to smog and imposed a shutdown in two major cities.Smog has choked Punja..

The authorities have also imposed a "health emergency" in Lahore and Multan districts to combat dense smog blanketing the province of about 130 million population for the last few weeks

A Pakistani province declared a health emergency Friday due to smog and imposed a shutdown in two major cities. Smog has choked Punjab for weeks, sickening nearly 2 million people and shrouding vast swathes of the province in a toxic haze.

About 1.93 people across the province experienced respiratory diseases and heart problems amid thick smog in Lahore and other cities.