(CNN) — Customs workers at a Minnesota airport discovered a traveler had brought a unique souvenir in her luggage: Giraffe feces.
"The passenger declared giraffe feces and stated she had obtained the droppings in Kenya and planned to make a necklace," the release stated.
The traveler said she had previously used moose feces to make similar jewelry at her home in Iowa, according to customs officials.
The agency's agriculture specialists "seized the box, and the excrement was destroyed via steam sterilization" according to protocol, the release said.
"There is a real danger with bringing fecal matter into the U.S.," LaFonda D. Sutton-Burke, director of field operations at the agency's Chicago field office, said in the release. "If this person had entered the U.S. and had not declared these items, there is high possibility a person could have contracted a disease from this jewelry and developed serious health issues."
Bringing "ruminant animal feces" into the US requires a veterinary services permit, the release said. The agency noted Kenya experiences African Swine Fever, Classical Swine Fever, Newcastle disease, Foot and Mouth disease, and Swine Vesicular Disease.