Heatwave in Pakistan's Karachi during Ramadan kills dozens

Dozens of people have died in Pakistan, where a severe heatwave has coincided with the start of Ramadan.

A volunteer sprays water on people to keep them cool in Karachi.

The southern city of Karachi, with a population of 15 million, is sweltering in temperatures hitting 44 degrees Celsius.

Local media reports say that up to 100 people have died of heatstroke since the weekend.

Heatstroke occurs when the body overheats in prolonged exposure to high temperatures. The condition leads to organ and muscle failure and is exacerbated by dehydration.

Read Siobhan Heanue’s story from ABC News - “Heatwave in Pakistan's Karachi during Ramadan kills dozens.”