The accident happened in Lugela Valley near the village Nukhuri.
According to Interpressnews, the truck of the brand Kamaz crashed and overturned after the driver lost control of the vehicle.
Two of the victims were employees of the forestry agency, one was working for a Chinese company carrying out logging in the valley, while the last victim was a local tractor driver.
Two people were injured and brought to hospital in Zugdidi. Both are employees of the forestry agency. The rest of the 11 persons traveling in the truck have less serious injuries.