epa12931544 A volunteer sprays water on people during a heatwave in Karachi, Pakistan, 04 May 2026. The Pakistan Meteorological Department has issued a heatwave alert for Karachi, warning that temperatures could rise to around 41 degrees Celsius in the coming days. EPA/REHAN KHAN

epa12931543 A volunteer sprays water on people during a heatwave in Karachi, Pakistan, 04 May 2026. The Pakistan Meteorological Department has issued a heatwave alert for Karachi, warning that temperatures could rise to around 41 degrees Celsius in the coming days. EPA/REHAN KHAN

epa12931542 A volunteer sprays water on people during a heatwave in Karachi, Pakistan, 04 May 2026. The Pakistan Meteorological Department has issued a heatwave alert for Karachi, warning that temperatures could rise to around 41 degrees Celsius in the coming days. EPA/REHAN KHAN

epa12931541 A man covers his head during a heatwave in Karachi, Pakistan, 04 May 2026. The Pakistan Meteorological Department has issued a heatwave alert for Karachi, warning that temperatures could rise to around 41 degrees Celsius in the coming days. EPA/REHAN KHAN

epa12931540 A volunteer sprays water on people during a heatwave in Karachi, Pakistan, 04 May 2026. The Pakistan Meteorological Department has issued a heatwave alert for Karachi, warning that temperatures could rise to around 41 degrees Celsius in the coming days. EPA/REHAN KHAN

epa12931539 A volunteer sprays water on people during a heatwave in Karachi, Pakistan, 04 May 2026. The Pakistan Meteorological Department has issued a heatwave alert for Karachi, warning that temperatures could rise to around 41 degrees Celsius in the coming days. EPA/REHAN KHAN

epa12931538 A man covers his head during a heatwave in Karachi, Pakistan, 04 May 2026. The Pakistan Meteorological Department has issued a heatwave alert for Karachi, warning that temperatures could rise to around 41 degrees Celsius in the coming days. EPA/REHAN KHAN

epa12931537 A volunteer sprays water on people during a heatwave in Karachi, Pakistan, 04 May 2026. The Pakistan Meteorological Department has issued a heatwave alert for Karachi, warning that temperatures could rise to around 41 degrees Celsius in the coming days. EPA/REHAN KHAN

epa12931536 A volunteer sprays water on people during a heatwave in Karachi, Pakistan, 04 May 2026. The Pakistan Meteorological Department has issued a heatwave alert for Karachi, warning that temperatures could rise to around 41 degrees Celsius in the coming days. EPA/REHAN KHAN

epa12931535 A volunteer sprays water on people during a heatwave in Karachi, Pakistan, 04 May 2026. The Pakistan Meteorological Department has issued a heatwave alert for Karachi, warning that temperatures could rise to around 41 degrees Celsius in the coming days. EPA/REHAN KHAN