Box of human heads donated to science were stolen from medical researchers in Denver

• A box of severed human heads was stolen Thursday, according to a statement from Science Care.
• The tissues were donated for medical research purposes and were used in a medical training event.

A box of severed human heads donated to science was stolen from medical researchers Thursday, according to a statement from the company on Monday.

Science Care, a "body donation to science" program, told Insider that the "donated tissues" were taken from a "secured truck that was in the process of returning the tissue to Science Care after a medical training event."

The donated tissue was inside of a white cardboard box labeled with Science Care's blue logo when they were taken, according to the statement.

The company says it is taking all necessary steps "to locate the stolen tissue and protect the community."

The Denver Police Department's investigation is ongoing, local outlet KDVR reported. Police have not yet made any arrests in the case.

The Denver Police Department did not immediately respond to Insider's request for comment.