Labour‘s chief whip has asked Jeremy Corbyn to “unequivocally, unambiguously and without reservation” apologise for claiming that the scale of antisemitism in the party was “dramatically overstated for political reasons”.

Mr Corbyn was suspended from the party last month over his comments, but was reinstated as a Labour member by the National Executive Committee following a meeting of a disciplinary panel three weeks later.

However, his successor as party leader Sir Keir Starmer last week blocked him from sitting as a Labour MP, though said he would keep the decision not to restore the whip “under review”.

Mr Brown, writing to Mr Corbyn on Monday, said that to inform an investigation into whether the Islington North MP broke the party’s code of conduct he wanted him to consider apologising for his comments.

He wrote: “Will you unequivocally, unambiguously and without reservation apologise for your comments made on the morning of 29 October 2020, in particular for saying ‘One anti-semite is one too many, but the scale of the problem was also dramatically overstated for political reasons by our opponents inside and outside the party, as well as by much of the media’, which caused such distress and pain to Jewish members of the Labour Party and the wider Jewish community?”

Mr Brown also asked Mr Corbyn to confirm that he will remove or edit his response — which he posted on Facebook, and asked for an assurance that he will cooperate fully with the party as it seeks to implement the EHRC’s recommendations.

A Labour spokesman said: “Following consultation with the Labour Leader, the chief whip has written to Jeremy Corbyn about his precautionary suspension from the whip.

“In the interests of transparency, a copy of this letter has been put in the public domain. We will not be making any further comments.”

The EHRC report found Labour had broken the law in its handling of antisemitism complaints, though Mr Corbyn said the scale of the issue had been “dramatically overstated for political reasons” by opponents inside and outside Labour, along with the media.

He later attempted to clarify his comments in a statement to the party, saying concerns about antisemitism were “neither ‘exaggerated’ nor ‘overstated’”.