Egyptian police surrounded the two main Muslim Brotherhood sit-ins in Cairo's Nahda and Rabaa El-Adaweya squares shortly after dawn on Wednesday as they moved to disperse thousands of Islamists in both venues. Live television footage showed riot police firing tear gas at protesters at one of the entrances of Rabaa El-Adaweya mosque in northern Cairo, where tens of thousands have been camping for more than 40 days to demand the reinstatement of ousted President Mohamed Morsi. Brotherhood spokesman Gehad El-Haddad accused police snipers of firing at Rabaa protesters from the rooftop of surrounding buildings. At the Nahda camp, centred round a traffic circle and extending down a palm tree-lined boulevard next to the Cairo zoo in Giza, greater Cairo, police used loudspeakers to urge protesters to leave amid sounds of gunfire. More details to follow. http://english.ahram.org.eg/News/78982.aspx