An Ontario mosque is coming under fire for using young Muslim children to conduct mock beheadings in a school play.

Video footage of the Islamic Jaffari Center in Thornhill, Ontario, shows children as young as 4 years old watching and learning to conduct beheadings in a play that reportedly took place two years ago.

The video was featured on the Canada's Sun News Network television program, "Byline with Brian Lilley."

A young boy can be seen sitting on the floor as another boy approaches him from behind with a machete.

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At the end of the play, the boy playing the part of the executioner announces, "Here are the heads."

The footage can be found at the 3:30 mark:

Lilly said the mosque also made news headlines when it planned to build a "massive, Muslim only condo complex in a very Jewish neighborhood" and again when schools associated with the mosque were teaching from textbooks that included propaganda about "crafty Jews being compared to Nazis in disturbing passages on jihad."

"The people at this mosque are not integrating into Canadian society," Lilley said. "They segregate themselves, be it with their clothing or in trying to build a Muslim-only complex. Given what we know about what was already being taught in the school associated with the mosque, more questions need to be asked and answered."

Toronto Sun columnist and liberal activist Tarek Fatah, author of "The Jew is Not My Enemy: Unveiling the Myths that Fuel Muslim Anti-Semitism," explained that the play depicts the martyrdom of Muhammad's grandson and brother.

"It's a Shiite school, and it's commemorating one of the great tragedies in Islamic history, which is the slaughter of the Prophet Muhammad's family by the caliphate of the time," said Fatah, who added that he watched these plays when he was a boy growing up in Pakistan.

"The children really go out to participate," he explained. "Looking at it from a Canadian context, I was deeply disturbed because it means that the indoctrination of 3, 4-year-olds that has been going on for centuries – and which even I as a child in Pakistan thought it to be perfectly normal – how much damage it would do in desensitizing me or my friends or buddies who are now in their 60s as to what is 'martyrdom' and why would anyone wish death was a good thing."

Fatah, who is also founder of the Muslim Canadian Congress, said the play depicts "an immense tragedy that turned the events of Islamic history."

"Mind you, this happened in the same area that ISIS is conducting the Islamic beheadings, the tragedy which these kids are talking about," he said. "The grandson of the Prophet Muhammad was slaughtered. His brother was killed and beheaded. The heads of Muhammad's family were paraded in the city of Damascus and Karbala. So it has a deep emotional value."

Fatah said he doesn't believe the parents and teachers at the Islamic Jaffari Center were "trying to make the kids into radicals."

"After all, these are the victims of radicals," he said. "Most Shiite Muslims today are being slaughtered by fellow Muslims. So that context has to be there. This was not some ISIS or al-Qaida or Taliban type of people."

Lilly interrupted, "They are acting out history. But you can see from Canadian eyes, though, why you look at this and go, this is strange, especially considering the history of this mosque."

Fatah replied, "I know. I think – how do I put it most kindly? – I think somebody needs to talk to them and try to make them understand that celebrating death, no matter of whom [sic], is a bizarre experience. It desensitizes bloodshed among kids."

He added, "The same Shiite sect also enacts beating themselves up. It's a bloody scene that every Muslim knows about … and it is disturbing. But somebody has to talk to the leadership of this community and say, 'For heaven's sake, you cannot celebrate death [and do it in] front of 3 to 4 to 5-year-old children.' It goes against the grain of about a thousand years of bereavement by this community who used to do this in secret because nobody in the Arab world was allowed to grieve for who they consider their leaders."

News of the mock beheading comes only a week after a Muslim convert beheaded a woman at an Oklahoma company. The suspect, Alton Nolen, who had been fired from his job at a food processing plant, attacked a woman with a knife and beheaded her, KFOR-TV in Oklahoma City reported. He then attacked another employee and was stopped when he was shot and wounded by the company owner.

Nolen had been trying to convert co-workers to Islam after recently converting himself, according to a local TV news report.

According to a local newspaper, the McCurtain Gazette, “a close family member” said Nolen had been telling co-workers about an “Islamic teaching that said women should be stoned for an offense,” and an argument ensued, after which Nolen was reportedly fired.

As WND reported in 2013, authorities in New Jersey alleged a Muslim man beheaded two Coptic Christians, burying their bodies and heads and hands in separate graves near Philadelphia.

The Muslim was identified as Yusuf Ibrahim, 28. He was taken into custody after the bodies were found and indicted in April.

Reports have been flooding the West in recent months of Muslim terrorists beheading Christians in the Middle East. On Friday, ISIS released a showing what is purportedly the beheading of British aid worker Alan Henning, the fourth Western hostage to be murdered by the terrorists. ISIS militants had threatened Henning's life three weeks ago.

At the end of the video, ISIS showed American aid worker Peter Kassig and is now threatening to kill him as well.