(7 Oct 2013) The funerals of four people killed in Sunday's protests in Egypt were held at the Sayyida Nafisa Mosque in Cairo on Monday. At least 51 people were killed in Sunday's clashes between security forces and supporters of ousted Islamist President, Mohammed Morsi, across much of Egypt. At least 40 of those killed were in Cairo, where some areas saw hours of pitched street battles between police and protesters. The fighting left streets looking like combat zones, with fires burning, black smoke rising and the air thick with tear gas. "There was a march that started in Mohandessin that encountered some policemen in Dokki," said one mourner, Osama Hassan, who's father was killed in the protest. "He was shot in the back," he said. On Monday a drive-by shooting killed six Egyptian soldiers east of Cairo. The drive-by happened shortly after a massive explosion, possibly from a car bomb, hit the security headquarters in a town near the area's tourist resorts in southern Sinai, killing at least two and wounding dozens. Also Monday, at least two rocket propelled grenades hit a compound housing the country's major satellite earth station in a southern Cairo suburb, security officials said. It was not immediately clear if Monday's violence was related to the clashes on Sunday, which began as holiday celebrations marking the start of the 1973 Middle East war, but descended into violence. Sunday's death toll and Monday's attacks constituted the latest chapter in the turmoil roiling Egypt since the removal in February 2011 of autocrat Hosni Mubarak. The latest violence is certain to set back efforts by the interim, military-backed government to revive the economy, especially the vital tourism sector, and bring order to the streets of Cairo, where crime and lawlessness have been rife. Find out more about AP Archive: http://www.aparchive.com/HowWeWork Twitter: / ap_archive Facebook: / aparchives Instagram: / apnews You can license this story through AP Archive: http://www.aparchive.com/metadata/you...