The Human Rights Commission (HRC) has weighed into an anti-Semitism row after a prominent Muslim leader accused Mossad for being behind the Christchurch terror attack.

On Saturday, a group called Love Aotearoa Hate Racism organised a rally for the victims in Auckland's Aotea Square.

Ahmed Bhamji, chairman of the Mt Roskill Masjid E Umar, gave a speech questioning where the gunman got his funding from. He said he suspected it came from "Mossad" and "Zionist business".