Egyptian authorities detained suspected "Black Bloc" members as they protested an order by the public prosecutor to arrest anyone from the shadowy opposition group.
Presenting themselves as the defenders of protesters opposed to President Mohamed Morsi's rule, the Black Bloc reportedly models itself on anarchist groups of the same name in Europe and the United States.
An Egyptian protester sprays water on the eyes of a victim suffering from exposure to tear gas during clashes with riot police near Cairo's Tahrir Square on January 30, 2013. Egypt's military chief warned that the political crisis sweeping the country could lead to the collapse of the state, as thousands defied curfews and the death toll from days of rioting rose to 52. UPI/Ahmed Jomaa
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