PLEASE NOTE THIS EDIT CONTAINS GRAPHIC IMAGES<br/> <br />The moment worshippers are allegedly fired upon in the Egyptian town of El Arish.<br/> <br />Reuters is unable to independently confirm the content of this video, which was uploaded to a social media website.<br/> <br />But according to Muslim Brotherhood activists, 40 people were injured when the army opened fire on the worshippers, who were said to be supporters of ousted Egyptian president Mohamed Mursi.<br/> <br />At least one man was badly wounded in the incident, which is said to have taken place on Friday.<br/> <br />Five Egyptian police officers were gunned down in separate incidents on Friday in El Arish, medical sources said, after Islamist gunmen killed a soldier in a separate attack in a nearby town overnight.<br/> <br />It is unclear whether the shootings are connected.<br/> <br />Egypt has struggled to control security in the Sinai peninsula since the ousting of President Hosni Mubarak in 2011.