UK Labour leader Jeremy Corbyn
UK Labour leader Jeremy CorbynReuters

British Labour Party leader Jeremy Corbyn is under fire yet again.

This time, JTA reported on Thursday, the controversial politician is being criticized for agreeing to speak at an event alongside a speaker who once called for a Jewish journalist’s throat to be cut.

Corbyn is scheduled to speak at a conference in September organized by the far-left group Momentum, The Independent reported. The conference will be held at the same time as and less than a mile from the official Labour Party conference.

Among the speakers at the Momentum event is Richard Seymour, a far-left blogger who last year wrote of Josh Hasten, an Israeli writer reporting on anti-Jewish attacks in Israel, "F**k him, they should cut his throat."

Katie Green, a chair of the campaign of Corbyn's rival for party leadership, Owen Smith, said, “These kind of violent and deeply offensive remarks make a mockery of Jeremy's 'kinder, gentler politics.' Jeremy should be condemning his comments.”

Corbyn has been widely criticized for calling Hamas and Hezbollah his "friends" and for outright refusing to condemn those two terrorist organizations despite being urged to do so by local Jewish groups.

Letters that were exposed in June also reveal that Corbyn in the past described Israel’s politicians as “criminals,” called for them to be banned from Britain and for trade sanctions to be imposed on the Jewish state.

The problem with anti-Semitism in the Labour party goes far beyond its leader, however, as in recent months the party has suspended dozens of members due to anti-Semitic statements.

Corbyn's planned appearance at the rival Momentum conference is seen as another sign of a deep divide within Labour, which was rocked by England's recent vote to exit the European Union and allegations of anti-Semitism among numerous party leaders.

The main Labour conference is also in disarray after party leaders decided to cancel a deal with the G4S security firm because of its business ties with Israeli prisons. Organizers are worried they will not have a replacement firm in place in time for the event, noted JTA.