The Islamic State commemorated the Muslim holiday of Eid al-Adha this week with a video of jumpsuit-clad prisoners hung from meat hooks and slaughtered like cattle.

International Business Times notes the treatment of the Islamic State’s Syrian victims in the video is similar to how sheep and goats are sacrificed during the Eid al-Adha holiday:

The video, titled “The Making of Illusion,” shows people purportedly from the Der Ezzor province of Syria, a stronghold of the Islamic State group, which is also known as Islamic State of Iraq and Syria (Isis) or Islamic State of Iraq and the Levant (Isil). All the men are shown dressed in orange jumpsuits, a common trait among people in videos who Isis says are its prisoners. Many of them are blindfolded, and their hands tied behind them. The video depicts them in what could be either a factory or a prison, while some are saying it could also be an abattoir or a slaughterhouse. The video initially names many — if not all — of the “prisoners” who go on to be killed. It then shows the Syrians being hung upside down from meat hooks, their hands restrained behind them with zip-ties. At one point, two of them are also shown being carried like goats on two arms by an Isis member. Their throats are then slit — much like how goats and sheep are cut in the halal way so their meat is deemed safe for eating by Muslims. Their “execution” happens because Isis suspects them to be spies.

The UK Daily Mail notes that these scenes of horrifying slaughter are mixed with “short clips showing actors Simon Pegg and Tom Cruise in the 2015 movie Mission Impossible: Rogue Nation.”

This was evidently done to make the point that the victims were spies working for the United States. The video also includes salutes to the ISIS terror attack on Paris and the Bastille Day truck rampage in Nice.

The Daily Mail quotes Abu Mohammed, founder of the human rights group called Raqqa Is Being Slaughtered Silently, describing the new ISIS production as “the worst video we saw.”

Much effort is invested by the Islamic State in terrorizing their victims, dragging them through the slaughterhouse and giving them plenty of time to contemplate the sight of dead men hanging upside down from meat hooks with their throats cut.

The Daily Mail provided a safe, if disturbing, excerpt from the video, which appears below. The full, EXTREMELY GRAPHIC, 12-minute clip can be seen at Heavy.com.