A mask covered with chicken blood and feathers was seized at the Nogales border crossing this week, officials say.

The mask was discovered by U.S. Customs and Border Protection officers during a routine inspection of a sedan crossing into Arizona through the Dennis DeConcini Port of Entry, officials said Wednesday in a news release.

The mask was deemed suspicious by the officers because of the blood and feathers.

It was turned over to officers in the agriculture division.

“While the seizure is somewhat unusual, the mask contained materials of a prohibitive nature that have the potential of transmitting avian diseases,” Agriculture Program Manager Tracy Filippi said in the release.

Officers were told the mask had been prescribed by a curandero — a healer — to help with insomnia.

The mask was ultimately incinerated. No citations were issued.