Karachi is in the grip of heat-wave which will likely to continue till Saturday.
The city recorded 42 degree centigrade temperature on Wednesday.
Pakistan Meteorological Department has issued a heat-wave alert in Karachi for four days during which sea breeze will remain suspended.
In view of heat-wave alert, composite measures have been taken by provincial government and Karachi administration to cope with the situation.
Emergency has been declared in all hospitals of the city.