Where the borders of Cambodia, Vietnam and Laos meet, there is the place from which this wildman is most frequently reported. In fact, this name may cover more than a single species. Some of them are small and reportedly able to make fire. Some are distinctly larger. It is said that, when humans are sitting around a fire, a nguoi rung will sometimes join them and utter grunts which may be words. One variety is said to be of a fearsome nature.
These creatures are said to not attain a height greater than 5'. They are said to have a tail. During the Vietnam War, reports of these creatures were frequent.