CHIANG MAI – Police have arrested a university student for selling drugs on Facebook, following the arrest of a teenager who claimed to have bought methamphetamine tablets (yaba) on the social network.

Arthit Khattha, 22, was arrested, on Thursday, in front of his dormitory in Santitham community in Muang district with 100 yaba pills in his possession.

Police also raided his girlfriend’s dorm and seized another 800 pills in her closet. The girlfriend, whose name was withheld, is also in police custody.

The suspects admitted to police that they had sold yaba via Facebook for a while.

According to police, they bought the drugs from dealers in Chai Prakan district and sold them to young people over Facebook.

Mr Arthit told police that after he was released from jail on drug charges one year ago, he joined the university to build a drug network among student addicts.

On Wednesday, Chiang Mai police apprehended a 17-year-old with 10 methamphetamine pills in front of a convenience store in Hang Dong district.

Provincial Police Region 5 chief Pol Lt Gen Suthep Dejraksa said he will launch an investigation into drug trading on social media in order to prevent more young people being lured by dealers.

It is not yet clear if the suspects arrested are the same people who sold the drugs to the 17-year-old.