“I think the ideological movement that is anti-Semitic is the right-wing movement,” de Blasio said at a Brooklyn press conference Tuesday about the increase of hate crimes in New York City. Hate crimes against all minority groups are up 64% compared to this time last year. Anti-Semitic incidents have spiked by 90%.

De Blasio said he did not agree with a claim by a reporter that there is also rising anti-Semitism “on the left in the BDS movement and around the world.” The Boycott, Divestment and Sanctions movement is a largely left-wing campaign to ban Israeli products.

“I want to be very, very clear, the violent threat, the threat that is ideological is very much from the right,” de Blasio said, adding that the perpetrators trace their history back to Nazism and fascism.