An official said on Sunday that the death toll of the violent confrontations which erupted during the early hours of Saturday by the Rabaa al-Adaweya Mosque has increased to 72 people, reported the state news agency.
The state news agency also reported the medical source as saying that about 292 people have been wounded in the confrontations while 381 is the number of injuries across the country.
Supporters of ousted President Mohamed Mursi have rallied in the Nasr City square for about a month to demand that their democratically elected president be reinstated.
After Egypt's army ousted the Islamist president on 3 July following massive demonstrations across the country, violent confrontations erupted between his supporters and opponents or security forces.
Last week, the army's top commander asked the people to rally over the weekend to mandate the armed forces to confront terrorism and violence.