RIYADH: Saudi authorities arrested two nationals on Sunday after discovering large amounts of khat and amphetamine. Security regiments patrolling in the Asir region arrested the first citizen after finding 60 kg of khat hidden in his vehicle while driving through the governorate of Sarat Abidah, the Saudi Press Agency reported.  The General Directorate for Narcotics Control in Jeddah arrested a second citizen who was found with 556,600 amphetamine tablets, a firearm, and large sums of money hidden in his vehicle. Preliminary legal measures were taken against both suspects, who were referred to the Public Prosecution.