The European Organisation for Nuclear Research (CERN) has launched an investigation into a video filmed at night on its Geneva campus depicting a mock ritual human sacrifice.
The ceremony appears to have been staged in front of a statue of the Hindu deity Shiva that is on permanent display at the complex, home of the Large Hadron Collider.
"Cern does not condone this type of spoof, which can give rise to misunderstandings about the scientific nature of our work."
Update, 2021: YouTube says: "This video has been removed for violating YouTube's policy on violent or graphic content. Learn more"