Police in the south central province of Phu Yen stopped a bus carrying endangered snakes, early on Saturday.
Do Thanh Nhan, 35, from Quang Nam Province, was caught driving north with 8.5 kilograms of endangered copperheads, and more than 119 kilograms of another species of snake that is also protected under Vietnamese law.
The bus owner, Huynh Ngoc Lam, 44, also from Quang Nam, told the authorities he received the snakes in Binh Thuan and was delivering them to some people in Quang Nam.
Lam said he didn't know who was supposed to pick them up.
The investigation continues to be underway.