Supporters of the Muslim Brotherhood welcome tanks arriving outside the Egyptian presidential palace in Cairo, December 6, 2012.

An Egyptian protester reads the newspaper as others sit next to their tents in Tahrir Square in Cairo, December 9, 2012

Egyptian men stand near writing on a wall in Arabic that reads down with the leader's rule, no to the Muslim Brotherhood in Tahrir Square in Cairo, December 9, 2012.

An Egyptian jet fighter flys over Tahrir Square as protesters gather, not pictured, in Cairo, December 9, 2012.

Anti-Mursi protesters walk near a military tank in front of the presidential palace in Cairo, Egypt, December 8, 2012.

Egyptian Army soldiers install barbed wire outside the presidential palace to secure the site of overnight clashes between supporters and opponents of President Mohamed Morsi in Cairo, Egypt, Dec. 6, 2012

Anti-Morsi protesters set off fireworks and shine laser pointers on a road leading to the presidential palace in Cairo, Egypt, December 6, 2012.

Protesters gather during clashes between supporters and opponents of Egyptian President Mohamed Morsi outside the presidential palace in Cairo, Egypt, December 5, 2012.

A wounded protester reacts during clashes between supporters and opponents of Egyptian President Mohamed Morsi outside the presidential palace in Cairo, December 5, 2012.

Supporters of the Muslim Brotherhood and Egyptian President Mohamed Morsi carry a body of one of six victims killed during Wednesday's clashes, Al Azhar mosque, Cairo, Egypt, December 7, 2012.

Protesters opposing president Mohamed Morsi attend Friday prayers beneath a poster depicting protesters killed in the Egyptian revolution, Tahrir Square, Cairo, Egypt, December 7, 2012.