Wildlife protection NGO Education for Nature (ENV) said it received a call from a Saigon food company on September 29 saying a staff member had been attacked by a raccoon that was inside a food container arriving from the U.S.

It had survived for over a month in temperatures of close to minus 18 degrees Celsius, eating through most of the food inside, which included meat.

After the discovery, the rescue team from the Saigon Zoo and Botanical Garden managed to secure the raccoon and bring it back to the zoo.

Mai Khac Trung Truc, director of the zoo’s animal division, said since the animal had spent so much time in sub-zero temperatures, it was at first placed amidst ice before being let get used to the warm environment over the next hour.

It is expected to join the other raccoons at the zoo within this week, he added.

The raccoon (Procyon lotor) is a nocturnal, omnivorous mammal native to North America. It is mainly found in forests, but also in mountainous areas, marshes and urban areas.