This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

CHICAGO — A shipment of 17 human heads was discovered Monday at O’Hare International Airport in Chicago.

According to the Chicago Sun Times, the heads were still covered with skin. They have been taken to the Cook County Medical Examiner’s office.

Authorities said no foul play was suspected, the newspaper reported.

U.S. Customs and Border Protection has launched an investigation.