The Israeli leader accused Mamdani of fueling divisions in the city.
“He’s supposed to be the mayor of all New Yorkers — Jews, Christians, Muslims, everyone — but he’s trying to turn one group against the other,” Netanyahu told Fox News.
Mamdani accuses Netanyahu of war crimes
Mamdani had previously said he would seek to enforce an arrest warrant issued by the International Criminal Court (ICC), which accuses Netanyahu of war crimes and crimes against humanity linked to Israel’s military campaign in Gaza.
Israel rejects the allegations, arguing the ICC lacks jurisdiction and that its military acts in self-defence.
Last week, Mamdani softened his position, saying he does not have the legal power to arrest Netanyahu and that enforcement of international warrants does not fall under the authority of New York City’s mayor.
Netanyahu also pointed to two stabbing attacks in Manhattan on Thursday, saying they reflected growing concerns about antisemitism.