Image copyright Reuters
Labour leader Jeremy Corbyn is facing opposition from Jewish organizations over plans to deliver a speech at a Jewish venue, the BBC understands.
Labour had approached the Jewish Museum, in London, to ask if Mr Corbyn could speak there on Friday.
Officials at the museum have turned down the request, but talks are said by Labour to be continuing.
The museum is seeking clarification and reassurances about the nature of Mr Corbyn's speech, the BBC understands.
It also wants to ensure leading Jewish organizations are consulted and invited to the event and also to make sure that Mr Corbyn addresses specific concerns about Labour's code of conduct.
The document is currently at the centre of an ongoing row about the party's handling of anti-Semitism allegations.
Sources have expressed concern that Mr Corbyn's planned speech could further damage relations between him and the Jewish community.
A source at the Jewish Museum told a News Media a News Media correspondent that they wanted to make sure it was a genuine exercise in bridge-building, the BBC's assistant political editor Norman Smith said.
Another source, at a leading Jewish organization, expressed their strong opposition to the speech, dismissing it as a "stunt".
They say Mr Corbyn has refused requests for a meeting and has not consulted them as promised in the wake of the row over the code of conduct.