Market management officials in the south central region's Binh Dinh Province seized 102 undocumented turtles on Saturday.
Truck driver Pham Quoc Thanh from the Mekong Delta was caught transporting the reptiles through the northern province. The turtles were between 38 and 85 centimeters long.
Officials also seized nearly one cubic meter of illegal precious timber from the same truck.
The turtles and wood are valued at more than VND500 million (US$24,300) in total, officials said.
The officials have not identified the suppliers or destination of the turtles and the wood.