Saudi busts drug smuggling ring using Mate packets
A video shared on Wednesday by Saudi Customs on Twitter depicts the two operations. The drugs were smuggled in packets of Mate - a caffeine-rich drink.
The customs agency said it seized almost fifty million pills of Captagon - one of the brand names for the drug fenethylline.
Six people were arrested in the operations, Saudi media reported.
Captagon abuse is common throughout the Middle East, with counterfeit versions of the drug (mostly amphetamine-based rather than fenethylline) readily available - although illegal - in many Arab countries.
The drug was invented in Germany in the 1960s to treat ADHD and sleep disorders. A highly addictive substance, it was banned throughout most of the world in the 1980s.
Saudi Arabia consumes more of the drug than anywhere else in the world.
But Syrian-produced Captagon has also played a role in the country's eight-year civil war, with profits from the multimillion-dollar trade in recent years being used to fund weapons.
The Syrian regime, extremist groups and rebel factions have been accused of using the stimulant to keep fighters on the battlefield for longer.
Cash-strapped Damascus has been accused of manufacturing and distributing the pills through drug gangs in the region for extra money.
Follow us on Facebook, Twitter and Instagram to stay connected