Egyptian security forces early Aug. 14 proceeded with an operation to clear Muslim Brotherhood protests in Cairo. Beginning at dawn, Egyptian army and police used bulldozers to disperse thousands of protesters who had camped out for six weeks in Giza's Nahda Square and at the Rabaa al-Adawiya Mosque in Nasr City. Casualty estimates vary widely depending on whether they are reported by state-run media, Muslim Brotherhood media or local observers. The state media so far claims a death toll of 13 (five of whom were security officers), with 98 injured, while the Muslim Brotherhood claims 500 dead and 9,000 injured. The operation at Nahda Square reportedly lasted three hours, while the crackdown at Rabaa al-Adawiya is still underway, with reports of clashes between security forces and protesters spreading throughout Cairo and to Alexandria and Aswan.