Former New York City Mayor Rudy Giuliani says Donald Trump is correct that there was "some celebrating" by U.S. Muslims after 9/11, but he is exaggerating the amount of people.



"We did have some reports of people celebrating that day as the towers were coming down," Giuliani told CNN's Alisyn Camerota on Tuesday's New Day.



While Giuliani acknowledged there was "some celebrating" but if it were thousands of people he would have "known that for sure."



"I think what's he's doing is he's exaggerating," Giuliani said. "People were celebrating, he's right about that."



"I didn't see any evidence of thousands and nor have I seen any since then," Giuliani added.