While the security officers were carrying out their investigation of the house, located in the densely populated King Fahd District, they were attacked, with various kinds of weapons being used, including rocket-propelled grenades. During the shootout, a second group came from outside and attempted to help their cornered colleagues and distract the security officers. The latter nevertheless firmly confronted them, and pursued them when they fled. A quantity of weapons was seized, including rocket-propelled grenades, automatic rifles, hand grenades, and explosives, as well as various documents.