RIYADH: Six people have been arrested in Riyadh in connection with an attempt to sell almost 4.1 million tablets of a controlled drug, the Saudi Press Agency reported on Wednesday. The arrests followed an investigation into gangs linked to the smuggling and distribution of drugs inside the Kingdom, Maj. Marwan Al-Hazmi, a spokesman for the General Directorate for Narcotics Control, said. Three of the suspects were of Egyptian nationality, one was Sudanese, one Yemeni and one a Saudi citizen. They have all been referred to public prosecutors and preliminary legal measures have been taken against them Anyone with information or suspicions about drug-related activities can call 911 in the Makkah, Riyadh and Eastern Province regions, or 999 in the rest of the Kingdom.