Protesters light up a flair as thousands of Egyptian opposition supporters rally outside of the Presidential palace to protest against the upcoming referendum on the new draft constitution on December 11, 2012, in Cairo. — Photo AFP

Two Egyptian men ride a motorbike past a tank stationed outside the presidential palace in Cairo.

An Egyptian protestor sleeps on the pavement outside the presidential palace in Cairo on December.

An silhouetted Egyptian boy drinks atop a concrete barricade outside the presidential palace in Cairo on December 12, 2012.

Egyptians walk past a line of army tanks stationed outside the presidential palace in Cairo.

An fully-veiled Egyptian woman walks past an army tank parked outside the presidential palace in Cairo.