The government in Lahore has closed schools and public spaces and shut down factories. Environmental lawyer Ahmad Rafay Alam shares his perspective: "frustrated" but still fighting.

Record-breaking levels of thick, toxic smog that have shrouded eastern Pakistan and northern India since last month can be seen in striking satellite imagery.

Air quality deteriorated to hazardous levels in New Delhi on Wednesday as toxic smog blanketed India, leaving residents of the capital complaining of “apocalyptic” scenes. The crisis also affected neighbouring Pakistan,

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.

The satellite images show an extremely heavy grey smog over Pakistan. It stretches into northern parts of India, albeit is lighter than the one over its neighbouring country.

Dense smog hovering over Pakistan's Punjab province and much of India is visible from space, as seen in NASA's satellite images. Asia is grappling with intense air pollution. Both Pakistan and India are experiencing exceptionally dense smog.

Pakistan’s cities slip under toxic smog as live readings for Lahore show PM 2.5 levels 100 times over what WHO prescribes

Dense smog hovering over Punjab province and much of India is visible from space. It can be observed in NASA's satellite images. Asia is grappling with severe air pollution. Pakistan and India, especially,