In some areas, mercury could soar as high as 48°C to 51°C, the PMD added.

According to the PMD, Karachi is likely to experience intense heat from June 8 to June 12, with the nighttime temperatures also expected to rise.

The PMD said several districts in Sindh and Balochistan may also experience temperatures as high as 48°C to 51°C, while parts of Punjab are expected to see readings between 44°C and 48°C.

The plains of Khyber Pakhtunkhwa could witness extreme heat, with temperatures climbing to 45°C-46°C.

Health experts warned people to take precautionary measures to protect themselves from the extreme heat.

Experts urged people to stay hydrated, avoid outdoor activity, especially from 10am to 4pm.

Health experts also called for special measures to protect the elderly and children during the heatwave.