TOPSHOTS Egyptian army and security officers pray over coffins covered with the national flags at Almaza military Airbase in Cairo on August 19, 2013, during a funeral for 25 policemen who were killed near the border town of Rafah, North Sinai. Militants killed 25 policemen in the deadliest attack of its kind in years, as Egypt's army-installed rulers escalated a campaign to crush ousted president Mohamed Morsi's Muslim Brotherhood. The assailants fired rocket-propelled grenades at two buses carrying police in the Sinai Peninsula, security sources said, just hours after 37 Brotherhood prisoners died in police custody. AFP PHOTO / KHALED DESOUKI