Jeremy Corbyn's proposed address to the Jewish community on Labour Party's antisemitism crisis has been cancelled.
On Thursday Mr Corbyn's office approached the Jewish Museum, in Camden, North London, to host the event with 24 hours' notice.
Abigail Morris, the museum's CEO, said today that there are no plans to host the event, and discussions between the two parties have ended.
The JC understands that the breakdown in communication was down to a misunderstanding as to who would be invited to the speech.
Labour Party officials initially suggested the Board of Deputies, the Jewish Leadership Council, the Community Security Trust and a number of prominent rabbis would be present.
It later emerged no contact had been made with the communal groups. Labour sources indicated the party was planning to invite them.
The Jewish Museum was initially open to the proposal, provided it was "done carefully and sensitively".
The approach sparked speculation that Labour was preparing to adopt the International Holocaust Remembrance Alliance's (IHRA) definition of antisemitism in full.