The founder of Mitzvah Day has called for more initiatives to "bring the moderate voices together", saying this year's events were attacked by "far-right" extremists.
Laura Marks said the day, where many Jewish people volunteer to do charitable works, often with people of other faiths, ran counter to an agenda that was increasingly "being driven by extremes."
It comes after Press TV's Roshan M Salih claimed that a Mitzvah Day event where Jewish people taught Muslims to make chicken soup was "soft infilitation by Zionists" intended to "neuter criticism of Israel and divide the Muslim community".
Ms Marks, who also chairs the Holocaust Memorial Day Trust, told the Sara Conference at Westminster on Monday: "Mitzvah Day is about as moderate as it gets. It's all about bring people together through social action.
