Jeremy Corbyn, the leader of the United Kingdom’s Labor party, said he was wrong, when in 2012, he supported an artist who had painted a mural in London that Corbyn now believes is anti-Semitic.

Corbyn, whose critics say has failed to confront the proliferation of anti-Semitism in the party since becoming its leader in 2015, said on Friday: “I sincerely regret that I did not look more closely at the image." Corbyn had instead focused more on defending the artist's artistic freedom in 2012.

The mural, titled Freedom for Humanity, depicts a group of businessmen and bankers, some of them Jewish, counting money around a Monopoly-style board balanced on the backs of men with dark complexions.

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Open gallery view A screenshot of Jeremy Corbyn commenting on a mural deemed to be anti-Semitic.

While Corbyn has been accused many times of failing to act against anti-Semitism, especially in connection to hatred of Israel, the case of the mural is unusual in that it does not concern the Jewish state and in it, is what Corbyn now acknowledges to be racist propaganda.

The Los Angeles-based artist who painted the mural, Kalen Ockerman, had acknowledged in 2012 that some of the bankers were Jewish but said on Facebook the mural was not anti-Semitic.

“You are in good company,” Corbyn replied on Facebook 2012. “Rockerfeller [sic] destroyed Diego Rivera’s mural because it includes a picture of Lenin.”

On Friday, Labor lawmaker Luciana Berger, who is Jewish, said she’d challenged Corbyn’s office about his comment to Ockerman on Facebook. This prompted Corbyn’s expression of regret, in which he added that the contents of the mural “are deeply disturbing and anti-Semitic. I wholeheartedly support its removal.”

In his statement, Corbyn wrote that he referred in 2012 to “the destruction of the mural ‘Man at the Crossroads’ by Diego Rivera on the Rockefeller Center.” That mural “is no way comparable” with the one made by Ockerman, Corbyn added.

After Berger’s questions and before Corbyn’s statement, his office made a statement defending his post to the artist’s Facebook page as having been motivated by concerns of free-speech, Bloomberg reported. That statement also acknowledged the mural had “anti-Semitic imagery.”

Berger described the response by Corbyn’s office as “wholly inadequate.”

Earlier this month, Corbyn was found to have been a member of a private Facebook group for two years until 2015 that featured many anti-Semitic statements. He said he had not read any of those statements.

Corbyn called Hezbollah and Hamas his friends in 2009 and said it was an honor to host representatives from those terrorist groups in parliament. In 2016, he said he regretted those statements. He has since vowed to kick out any Labor member caught making racist or anti-Semitic statements. Dozens of members have since been expelled, but many others accused of these actions have been allowed to stay or readmitted.

British Jews and an interparliamentary committee of inquiry have dismissed an internal Labor audit that largely cleared the party of anti-Semitism allegations as unsatisfactory.

Many Labor critics trace the party’s anti-Semitism problem to thousands of members joining from Corbyn’s hard-left Momentum group.