KARACHI, Pakistan (AP) — A days-long intense heat wave has disrupted normal life in Pakistan, especially in its largest city, Karachi, where doctors treated thousands of victims of heatstroke at various hospitals, health officials said Tuesday.

Several people fell unconscious in the city and some of them later died, local media said.

Temperatures soared as high as 47 degrees Celsius (117 degrees Fahrenheit) in Sindh province on Tuesday. Authorities in Karachi, the provincial capital, are urging people to stay indoors, hydrate, and avoid unnecessary travel.

Weather forecasters say the heat wave, which began in May, will subside next week.

According to local media, the days-long heat wave also killed more than two dozen people in Karachi, but no government spokesman was available to confirm the number of heatstroke-related deaths.