Security patrols in Riyadh have arrested one person suspected of 18 armed robberies of pharmacies in the spate of one week in the north and east of the capital. A surveillance camera recorded the suspect wielding a weapon and demanding cash at a pharmacy. The patrols had received a tipoff about the series of crimes and had stepped up its investigation until it nabbed the offender. The culprit was handed over to the competent authorities for the necessary procedures.