The seized items were 155 sticks of heroin, weighing 59 kg, and 218,000 methamphetamine pills. The drugs were hidden in two suitcases as the suspects travelled by bus from Phayao to deliver them to customers in the central province of Ang Thong. The drugs were originally smuggled from the Myanmar border in the northern province of Chiang Rai.
The suspects confessed that they had been hired by another man who was apprehended in Chiang Rai province.
The smuggled drugs belonged to the gang of Myanmar-based drug lord Lt Col Yi Se.