Protests go into the night outside the Presidential palace in Cairo.
Demonstrations marking the second anniversary of the uprising that toppled Hosni Mubarak have killed nearly 60 people since Jan. 25.
The head of the army has warned that the country is on the verge of collapse.
More than 50 people were wounded across the country Friday -- mostly in Cairo.
The protesters accuse President Mohamed Mursi of betraying the spirit of the revolution. They say he is concentrating too much power in his own hands and those of his Muslim Brotherhood. In turn, the Brotherhood accuses the opposition of trying to overthrow the first democratically elected leader in Egypt's 5,000-year history.
Dozens wounded in clashes in Egypt (1:03)
Feb. 1 - Dozens are wounded in protests in Egypt as demonstrators clash with police outside the Presidential Palace. Deborah Lutterbeck reports. ( Transcript )