Two Indonesian tourists and one Vietnamese man were arrested for drug use and trafficking on Monday night in Svay Rieng province.
The three men, all casino gamblers, were apprehended in Bavet city, on the Cambodia-Vietnam border.
Police seized 11 packages of crystal methamphetamine powder and 42 tablets from the men, as well as two packages of ketamine powder, one drug scale, four mobile phones and other related drug paraphernalia.
Provincial military police deputy commander Colonel Srey Vutha identified the Indonesian suspects as Albert Putu, 23, and Buddy Bupati, 29.
The Vietnamese man was named as Truong Dainfa, 28.
He said they were arrested after military police raided their rental house in Bavet commune.
The suspects have been preliminarily accused of drug use and trafficking and temporarily detained at the Svay Rieng military police department.
They will appear at the provincial court today.