The Mideast has been hit by a heat wave since late July. Egyptian summers are usually hot, but temperatures this week soared to 46 degrees Celsius in the country's south.
The state news agency MENA says temperatures are expected to rise around the country tomorrow and will reach 42 degrees Celsius in the capital, Cairo.
MENA gave the new death toll yesterday and said most of those killed were elderly. Those who have died also include three patients at a psychiatric hospital and three detainees in a jail, both north of Cairo.