Police have arrested two persons over the shooting at a Riyadh school Monday which led to one pupil suffering minor injuries. The two youths detained, one of whom has admitted to investigators to using a gun in the incident, were part of a group that entered the recreation area of the Prince Sultan Intermediate School in the Salah Al-Deen district leading to arguments between two factions of pupils and the firing of shots. One pupil suffered an injury to his arm resulting from bullet ricochets. Police in Riyadh said Tuesday that they identified the home address of the two youths and took them into custody with the assistance of their guardians. The case has been referred to the General Commission for Investigation and Prosecution.