
Egyptian protesters throw stones at riot police during clashes near a state security building in Port Said, Egypt, Thursday, March 7, 2013. Clashes between protesters and police continued into a fifth day on Thursday in the restive Egyptian city of Port Said. (AP Photo/Khalil Hamra)

Egyptian protesters throw stones at riot police during clashes near a state security building in Port Said, Egypt, Thursday, March 7, 2013. Clashes between protesters and police continued into a fifth day on Thursday in the restive Egyptian city of Port Said. (AP Photo/Khalil Hamra)

Egyptian protesters react from a tear gas canister fired by riot police, not pictured, during clashes near a state security building in Port Said, Egypt, Thursday, March 7, 2013. Clashes between protesters and police continued into a fifth day on Thursday in the restive Egyptian city of Port Said. (AP Photo/Khalil Hamra)

Egyptian protesters react from a tear gas canister fired by riot police, not pictured, during clashes near a state security building in Port Said, Egypt, Thursday, March 7, 2013. Clashes between protesters and police continued into a fifth day on Thursday in the restive Egyptian city of Port Said. (AP Photo/Khalil Hamra)

Protesters storm an office of Egyptian President Mohammed Morsi's Muslim Brotherhood Freedom and Justice Party and set fires in the Mediterranean port city of Alexandria, Egypt, on Friday, Nov. 23, 2012. State TV says Morsi opponents also set fire to his party's offices in the Suez Canal cities of Suez, Port Said and Ismailia. Opponents and supporters of Mr. Morsi clashed across Egypt on Friday, the day after the president granted himself sweeping new powers that critics fear can allow him to be a virtual dictator. (AP Photo/Amira Mortada, El Shorouk newspaper)

Protesters storm an office of Egyptian President Mohammed Morsi's Muslim Brotherhood Freedom and Justice party and set fires in the Mediterranean port city of Alexandria, Egypt, Friday, Nov. 23, 2012. State TV says Morsi opponents also set fire to his party's offices in the Suez Canal cities of Suez, Port Said and Ismailia. Opponents and supporters of Morsi clashed across Egypt on Friday, the day after the president granted himself sweeping new powers that critics fear can allow him to be a virtual dictator. (AP Photo/Amira Mortada, El Shorouk Newspaper) EGYPT OUT

Protesters storm an office of Egyptian President Mohammed Morsi's Muslim Brotherhood Freedom and Justice party in the Mediterranean port city of Alexandria, Egypt, on Nov. 23, 2012, and set fires. State TV says Morsi opponents also set fire to his party's offices in the Suez Canal cities of Suez, Port Said and Ismailia. Opponents and supporters of Morsi clashed across Egypt, the day after the president granted himself sweeping new powers that critics fear can allow him to be a virtual dictator. (Associated Press/Amira Mortada, El Shorouk Newspaper)

Protesters storm an office of Egyptian President Mohammed Morsi's Muslim Brotherhood Freedom and Justice party in the Mediterranean port city of Alexandria, Egypt, on Nov. 23, 2012, and set fires. State TV says Morsi opponents also set fire to his party's offices in the Suez Canal cities of Suez, Port Said and Ismailia. Opponents and supporters of Morsi clashed across Egypt, the day after the president granted himself sweeping new powers that critics fear can allow him to be a virtual dictator. (Associated Press/Amira Mortada, El Shorouk Newspaper)

Egyptian fans clash with riot police after the al-Ahly match against al-Masry at the stadium in Port Said last month. Egypt's top prosecutor has charged 75 people with murder and negligence in connection with the deadly soccer riot last month in the Mediterranean city of Port Said.