Protesters throw fireworks at police during clashes in front of the presidential palace in Cairo, Feb. 1, 2013.

Anti-government protesters gather outside Egypt's presidential palace in Cairo, Feb. 1, 2013.

Police burn tents of protesters who staged a sit-in for weeks in front of the presidential palace, during clashes between protesters and police, in Cairo, Feb. 1, 2013.

Protesters throw stones at security forces inside the presidential palace during clashes in front of the palace in Cairo, Feb. 1, 2013.

Egyptians shout slogans during anti-President Mohamed Morsi protest in front of the presidential palace in Cairo, Egypt, Feb. 1, 2013.

An Egyptian protester tries to escape from fire after he burned an anti-Morsi banner in front of the presidential palace in Cairo, Egypt, Feb. 1, 2013.

Egyptian security forces protect themselves from heavy rains in front of the presidential palace in Cairo, Egypt, Feb. 1, 2013.

Protesters chant slogans and hold a picture of a slain young man in Port Said, Egypt, Feb. 1, 2013.

Egyptian Army soldiers (C) try to stop protesters opposing Egyptian President Mohamed Morsi from attacking the Security Directorate of Port Said, during a protest in Port Said Feb. 1, 2013.

Egyptian protesters chant anti-government slogans during a rally in Tahrir Square, Cairo, Egypt, Feb. 1, 2013.

egypt protest

An anti-Morsi demonstrator (C) gestures to a crowd of demonstrators waving a huge Egyptian flag, after Friday prayers at Tahrir Square in Cairo, February 1, 2013.

A bloodied foot print is seen in this April 25, 2006, file photo, at the site where one of three bombs ripped through Egypt's Red Sea resort of Dahab. Shards of glass and bloody body parts littered the ground as Egypt reeled from a three-bomb attack that ripped apart a Sinai beach resort promenade at the height of Egypt's tourist season, killing at least 24 people, including a German child. More than 60 others were hurt.

Anti-government protesters gather outside Egypt's presidential palace in Cairo, Feb. 1, 2013.

1일 이집트 카이로에 모인 반정부 시위대

Protests Challenge Egypt's Leadership

Protesters opposing Egyptian President Mohamed Morsi shout slogans next to a flag with words "Port Said State" written on it, in the city of Port Said Feb. 1, 2013.

A protester opposing Egyptian President Mohamed Mursi walks outside tents near a picture Egypt's former President Gamal Abdel Nasser during a sit-in at Tahrir Square in Cairo, January 31, 2013.

Egyptian protesters chant anti-government slogans during a rally in Tahrir Square, Cairo, February 1, 2013.