The Chinese embassy confirmed the incident, saying it took place at 8:00 a.m. local time when the victims, one of whom was an employee of a mining company from China's Yunnan province, were on board of a vehicle.
Laos military personnel rushed to the scene and the injured, surnamed Zhou, has been shifted to a hospital in capital Vientiane for treatment.
The Chinese embassy officials visited the injured person and required for prompt investigation into the attack.