"It is my responsibility to acknowledge the hostility you have shown to the Jewish community and the anti-Semitic statements and actions you have allowed as leader of the Labour party UK", Israeli Labor Party leader Avi Gabbay wrote in a letter to Corbyn, distributed to the media.
Mr Gabbay says the policies of Israel's opposition party and the ruling coalition government were "aligned" when it came to the "security of our citizens and the actions of our soldiers" and Mr Corbyn had shown "hatred" of the government's policies in these areas.
Gabbay accused Corbyn of crossing "a unsafe line" between legitimate criticism of Israeli policy and anti-Semitism.
Gabbay wrote that he made a decision to take the step ahead of Holocaust Martyrs' and Heroes' Remembrance Day, which recalls the horrors of antisemitism in Europe and Israel's commitment to combating antisemitism of all forms and in all places.
There are some areas where the two parties will continue to work together, he added, but "we can not retain relations with you, Leader of Labour Party UK". "I think they should have done me the courtesy of asking me first".
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Criticism of the Labour leader reached a crescendo earlier this month when 1500 demonstrators protested outside Parliament Square in central London calling for severe punishments against antisemitic members of the party. He said he asked his party's global secretary to update him quarterly on the issue.
In his letter, Mr Gabbay, the leader of Israel's main opposition party, hails its "long history of friendship" with UK Labour. "He has failed to respond to their repeated offers of dialogue, including invitations to host him at Yad Vashem, Israel's national Holocaust museum". "Nothing will change re our relationship and we have a delegation planned in late May, same as ever".
The Chair of Labor Party Israel has announced it will be cutting ties with the UK party boss while he "fail [s] to adequately address the anti-Semitism within Labour Party UK".
Over the weekend, the Campaign Against Antisemitism held their own rally outside the Labour Party's London HQ.
He added: "The UK government must support the UN Secretary-General's call for an independent global inquiry into the killing of protesters in Gaza and review the sale of arms that could be used in violation of worldwide law".