People walk through a sit-in camp set up by supporters of ousted Islamist President Mohammed Morsi near Cairo University as Egyptian security forces clear the sit-in camp in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. Egyptian police in riot gear swept in with armored vehicles and bulldozers Wednesday to clear the sit-in and the other encampment of supporters of the country's ousted Islamist president in Cairo, showering protesters with tear gas as the sound of gunfire rang out. (AP Photo/Mohammed Asad)

Photo by: Mohammed Asad

People walk through a sit-in camp set up by supporters of ousted Islamist President Mohammed Morsi near Cairo University as Egyptian security forces clear the sit-in camp in Cairo's Giza district, Egypt, Wednesday, Aug. 14, 2013. Egyptian police in riot gear swept in with armored vehicles and bulldozers Wednesday to clear the sit-in and the other encampment of supporters of the country's ousted Islamist president in Cairo, showering protesters with tear gas as the sound of gunfire rang out. (AP Photo/Mohammed Asad)