Thousands of people have fallen victim to the searing heat, as the Karachi's morgues become inundated with the dead.
Pakistan hails infrastructure deals with China worth over US$46 billion as a path to prosperity. China will invest in dams, roads and other infrastructure as part of the China-Pakistan Economic Corridor.
The trip is the first by a Chinese head of state to Islamabad in almost a decade, and is expected to pave the way for major economic projects between the two countries.
Beijing said it is ready to announce a huge amount of financing for infrastructure and energy projects in Pakistan during President Xi Jinping's visit next week.
A World Bank report says Pakistan’s urban air pollution is among the most severe in the world. The popular auto rickshaws are a source of this pollution, but a Pakistani engineering firm says they have come up with a clean and green solution.
A Pakistani delegation is in Saudi Arabia to discuss Pakistan’s possible military role in fighting Shia rebels in Yemen who have toppled the government. Pakistan’s possible involvement in the Sunni-Shia conflict has stirred sectarian controversy at home and threatens to upset other Muslim countries.