Mayor de Blasio sought to comfort New York’s Jewish community Sunday following the horrific attack on a Pittsburgh synagogue that left 11 dead.

“We will defend with our lives the synagogues of this city and the community of this city,” he said during a press conference at the Upper East Side’s Temple Emanu-el. “We stand with you. We will not let anyone harm you.”

The NYPD “will be present in force to protect Jewish community institutions,” he said, adding there are no credible or specific threats against New York’s Jewish institutions.

De Blasio pushed back against President Trump’s claim that armed guards at the synagogue could have prevented the slaughter.

“Houses of worship do not have to have armed guards to be able to practice their religions — that’s not America,” de Blasio said.