Anti-government demonstrators clashed with security forces facing Egypt's presidential palace Friday evening, throwing gasoline bombs as police responded with tear gas and water cannons.
Egyptian Protesters, Police Clash Near Presidential Palace

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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.

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