Shadow cabinet member Richard Burgon has been urged to apologise for denying he said Zionism is the “enemy of peace”.
The Labour MP denied making the remark in a BBC interview last year, but footage has now emerged of him appearing to say it.
The Labour Friends of Israel group accused him of “seemingly misleading the public”.
Neither Labour nor Mr Burgon have commented on the row.
The shadow justice secretary, an ally of Jeremy Corbyn’s was asked about the comments in March 2018, following newspaper reports in 2016 that he had made them.
Zionism refers to the movement to create a Jewish state in the Middle East, roughly corresponding to the historical land of Israel.
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When asked on the BBC’s Daily Politics show whether he had said Zionism was the enemy of peace, he replied: “No and it’s not my view”.
“I didn’t make those comments, I asked when I was meant to have made those comments. No one could tell me and it’s not my view”, he said.
“So if it’s not my view, I wouldn’t have made those comments”, he added.
However a new video shows Mr Burgon saying: “The enemy of the Palestinian people is not the Jewish people. The enemy of the Palestinian people are Zionists, and Zionism is the enemy of peace and the enemy of the Palestinian people.”
Journalist Iggy Ostanin, who released the video, said the footage was from 2014 – before Mr Burgon was elected as MP for Leeds East at the 2015 general election.
In the video, Mr Burgon also called for MPs who are members of Labour Friends of Israel (LFI) to resign from the group “in support of the Palestinian people”.
LFI Director Jennifer Gerber said: “For nearly two years, Richard Burgon has deployed half-denials and weasel words to escape responsibility for his appalling suggestion that Zionism is the enemy of peace.”
“Now that we’ve all seen exactly what he said, it’s time for Mr Burgon to apologise both for this slur on the Jewish people’s right to self-determination and for seemingly misleading the public about it”.
“Somebody who aspires to be one of the country’s leading legal figures simply cannot behave in this fashion.”
Amanda Bowman, Vice-President of the Board of Deputies of British Jews, said Mr Burgon “should apologise for his comments and for his denial of them”.
“Richard Burgon’s denial and the subsequent revelation of his 2014 incitement against Zionists encapsulate the total sham of Labour’s approach to anti-Semitism”, she added.