Two rare gibbons confiscated from a company in the southern province of Binh Duong were handed over to a wildlife rescue center Monday.
According to provincial police officers, the black-crested gibbons (Nomascus concolor) were found on the premises of the Dai Hai Wood Trade and Technology Ltd.,Co., owned by Le Trung Hieu, last Wednesday.
Hieu failed to present documents related to the animals, saying that he'd bought them in Ho Chi Minh City, police said.
Currently the monkeys are in the hands of the Cu Chi Wildlife Rescue Center based in the city, and will go under various tests including species verification done in Hong Kong.
Officials said the tests will help the center make a suitable care plan for the gibbons before releasing them back into the forests.
Distributed in Vietnam, Laos, Cambodia and India, the black-crested gibbon is categorized as critically endangered, the highest category, by the International Union for Conservation of Nature.
In Vietnam, they are found in the north and northern central areas, according to the Binh Duong Forest Rangers Office. Vietnamese law bans ownership, hunting and trading of wildlife, especially endangered species.