One doctor compared breathing in Pakistan's toxic air to smoking "dozens of cigarettes a day" as Lahore is the world's most polluted city this week.

Authorities in Pakistan’s Punjab have declared a health emergency in the country's east due to increasing smog as more than 2 million people complained of respiratory illnesses. All educational institutions have been shut,

Punjab province in Pakistan has declared a health emergency and closed two cities due to severe smog affecting nearly 2 million people.