US EMBASSY WTH RADICAL ISLAMIST

Radical Islamists storm U.S. Embassy in Cairo 

The mob climbed the walls of the compound in Cairo, made their way into the courtyard and replaced the flag with a black flag with an Islamic inscription.

Ultra-conservatives claimed the action was to protest against a film attacking Islam's prophet, Muhammad. 

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The mob climbed the walls of the compound in Cairo and ripped down the U.S. flag

Protesters destroy an American flag pulled down from the U.S. embassy in Cairo, Egypt

Hundreds of protesters marched to the embassy in downtown Cairo, gathering outside its walls and chanting against the movie, which was reportedly produced in the U.S..

The crowd chanted: 'Say it, don't fear: Their ambassador must leave.'

d tried to burn it, but failing that, tore it apart.

The protesters on the wall then raised on the flagpole a black flag with the Muslim declaration of faith on it, 'There is no god but God and Muhammad is his prophet.'

The flag, similar to the banner used by al-Qaida, is commonly used by ultraconservatives around the region. 

Egyptian riot police stand guard as protesters climb down from the wall of the embassy

Thousands of Egyptian demonstrators were angered by a film produced by expatriate members of Egypt's Christian minority resident in the United States

Egyptian protesters pray outside the U.S. embassy in Cairo

In Washington, State Department spokeswoman Victoria Nuland said the U.S. was working with Egyptian authorities to try to restore order.

All the staff had left before the embassy was breached, a U.S. official said.

Only a few staff members were still inside, as embassy security had sent most staff home early after learning of the upcoming protest.

An Egyptian protester (centre) holds a placard reading in Arabic 'no to sectarian strife' during the protest

Egyptian protesters chant anti U.S. slogans in front of the embassy

VIDEO: Radical Islamists scale US Embassy walls in Cairo