Facebook must do more to tackle Shoah denial, says Holocaust Educational Trust chief executive

“And the root cause of denial is hatred of Jews – it is suggesting that Jews made it up, that it’s a conspiracy, that somehow it is to get sympathy.”

Ms Pollock was among those to condemn Facebook chief executive Mark Zuckerberg in July, when he said people who posted Shoah denial to the website were not "intentionally getting it wrong" and questioned whether the company should remove such content.

In an open letter to Facebook boss Mark Zuckerberg, the heads of 24 institutions warned the social media giant in August that it was allowing "complete and utter falsehoods" about the Holocaust to go "systematically unchecked".

A Facebook spokesperson said the company took Jew-hate "incredibly seriously".

She added: "We take down any post that celebrates, defends, or attempts to justify the Holocaust.

“The same goes for any content that mocks Holocaust victims, accuses victims of lying about the atrocities, spews hate, or advocates for violence against Jewish people in any way.

“As you can imagine, posts and articles that deny the Holocaust often violate one or more of these standards and are removed from Facebook.

“We also remove this content in countries where Holocaust denial is a criminal offence such as Germany, France and Poland.”