President Mohamed Mursi has invited supporters and opponents to meet tomorrow at 6:00pm (1600 GMT) at the presidential palace in Cairo.
A statement from the presidency said it was inviting a range of Islamist allies and liberal and other opposition groups, as well as leading politicians such as leftist firebrand Hamdeen Sabahy and former foreign minister and Arab League chief Amr Moussa.
Mursi declared a state of emergency in the three most volatile cities on the Suez Canal today after waves of violence left 45 dead and hundreds injured.
Wherever there is division in Egypt right now – death seems sure to follow. The greatest toll came amid gunfire and tear gas in Port Said.
Riots sparked by death sentences passed in connection with last year's deadly riot at the Port Said football stadium have killed 22 people.