The heatwave which has been sweeping through Egypt since early this week has claimed the lives of 76 people so far, with 15 reported recently.
At least 187 others were transferred to hospitals in several governorates after suffering from heat exhaustion, including 51 who are still under observation, the health ministry said in a statement.
Cairo witnessed six deaths out of 15, according to the statement, which added that most of those who died were the elderly.
Last Sunday, the ministry said that 61 people have died across Egypt due to the severe heatwave that has hit the country.
The death toll included detainees and patients in a psychiatric hospital, according to media reports.
The ministry has advised Egyptians to avoid direct sunlight and drink more water. The heatwave is expected to continue until August 25, according to the Egyptian Meteorological Authority (EMA).