Two of Jeremy Corbyn’s closest advisers appeared on a panel with a former Muslim Brotherhood spokesman who said that Israeli Jews “are not Jews”.

In 2012 Seumas Milne, who is now Mr Corbyn’s communications chief, chaired “Where now for Egypt and the Middle East?”, an event at the University of London. Andrew Murray, 61, who advises Mr Corbyn, was one of the speakers, as was George Galloway, then a Respect MP, and Kate Hudson, general secretary of CND.

The final panellist was Kamal el-Helbawy, a former spokesman for the Muslim Brotherhood. He said at the event: “I have Jewish friends who are really Jewish. They stay with me, they eat with me, they sleep with us at home. Unfortunately the ones we have in Israel,