Former EastEnders star Tracy Ann Oberman said she was quitting Labour over the failure to expel Mr Livingstone.

She tweeted: “Like so many of us whose East End heritage was steeped in Labour, I’m reeling today. Resigning my membership. Feel so let down.”

The decision by a disciplinary panel to suspend Mr Livingstone for a further year because of the comments has sparked outrage from a number of Labour MPs, and Jewish community figures.

Amongst the most vocal critics, have been Sadiq Khan, deputy leader of Labour Tom Watson, and Luciana Berger, a Jewish MP for Liverpool Wavertree.