On Tuesday, smog situation worsened in Punjab and Khyber Pakhtunkhwa as poisonous smoke made it difficult to breathe for people, especially in Lahore, which was the worst polluted city in the world.

Lahore, which has been reeling under severe pollution is now seeing thick and toxic smog clouds which are now visible through space via satellite imagery taken by NASA, Geo News reported.

NASA's satellite images reveal toxic black smog engulfing Pakistan, with Lahore and Multan's AQI reaching hazardous levels, prompting government action and widespread health concerns.

Toxic smog in India and Pakistan has caused air quality in the major metropolitans of Lahore, Multan, Delhi and Chandigarh to deteriorate to toxic levels.

Pakistan’s cities slip under toxic smog as live readings for Lahore show PM2.5 levels 100 times over what WHO prescribes