Seven people have been arrested in Bangkok in possession of 400,000 methamphetamine pills, or "yaba", and 7kg of crystal methamphetamine, or "ice".
Pol Lt-Gen Chaiwat Chotima, chief of the Narcotics Suppression Bureau, said police, acting on information from detectives, arrested Kyaw Soe, or Sing, 28, a Myanmar national, and seized the drugs in a search of a house in Soi Navamin 70 in Bung Kum district.
Information gained from him led to the arrest of the six others, who were couriers in his drug network.
NSB police seized from them 10 mobile phones, three cars, three handguns and some bullets.
They were charged with having illicit drugs in their possession with intent to sell.