Environment police in the northeastern province of Bac Kan seized the frozen carcass of a 303-kilogram tiger when they searched a truck on Thursday, news website Dan Tri reported.
The search was carried out after the police was tipped off that the truck, which was parked in Bac Kan Hotel, was smuggling goods.
They found the frozen tiger, already cut into five parts and put in five sacks, wrapped in blankets and hid in the truck.
They also seized two sacks containing 53 kilograms of animal bones, three kilograms of animal bone glue and three kilograms of turtle shells from the truck.
Pham Minh Long, the 43-year-old truck driver, told police he was hired to transport the goods.
He is being detained pending investigations.