Eyewitnesses said that unknown armed groups fired rocket propelled grenades (RPG) on Friday on the state security office in Arish, in North Sinai, setting the building on fire. According to eyewitnesses, the state security building that was under attack was opened only five months ago. The building is adjacent to police headquarters and the governorate's offices, which are also in danger of catching fire if the flames are not contained. The old state security building in the heart of Arish was destroyed and burned during last Friday's protest.