Respect Party politician Lee Jasper has used the upcoming Holocaust Memorial Day to mount an attack on Israel as a "racist oppressor".
Mr Jasper, a former equalities adviser to Ken Livingstone and an activist on race relations issues, made the comments about Israel and the Holocaust on his Facebook page.
Writing incorrectly that HMD is today – it is in fact later this week – he said: "We are asked to remember that which Israel has forgotten, that religious & racial hatred is a sin against God."
He added: "Israel has failed to learn the lessons of its own tragic history having evolved into a racist oppressor," and tagged the comment with the accusation "apartheid".
Mr Jasper, who recently failed in his by-election bid to seize the Croydon North seat for Respect, claimed in 2005 that attacks on Jews were better "monitored" than those on other minority groups.
His comments follow the controversy in October when a Respect activist questioned whether Hitler was "the bad guy". At the time, Mr Galloway's party said that it "abhors and campaigns against racism".