One of Jeremy Corbyn's most senior allies is facing calls to resign after suggesting that it would be "wonderful" if Holocaust Memorial Day was not just about the genocide of Jews.

Jackie Walker, vice-chair of Momentum, who has previously been suspended over alleged anti-Semitic remarks, also questioned the party's definition of anti-Semitism during the training session, prompting party members to shout and heckle in disbelief.

The chair of Jewish Labour has demanded Ms Walker resign over the "provocative and insensitive" remarks, the second time this week that members have called for her to be suspended from the party.

In a secret recording obtained by The Telegraph, she can be heard arguing that Holocaust Memorial Day, one of the most significant dates of remembrance of the persecution of the Jews, is not inclusive enough.