Supporters of the Muslim Brotherhood took to the streets Friday. They chanted slogans and raised four fingers, the symbol known as “Rabaa”,  remembering those killed in the crackdown on the Rabaa Al-Adaweya protest camp in Cairo last year, during a demonstration in Cairo on 24 January 2014. Protesters carried placards that read “Void, Execute [Egypt’s Defence Minister army chief Abdel Fattah] al-Sisi”.

A suicide bomber struck Cairo police headquarters on Friday, the first of three bombings in the Egyptian capital that killed five people ahead of the anniversary of the 2011 uprising. Arabic writing on placards reads .

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