Mayor de Blasio and NYPD Commissioner O'Neill held a press conference in Staten Island today to speak out against the anti-Semitic threats that have recently plagued the city, with the mayor referring to the present as "a moment in history where forces of hate have been unleashed." The city has vowed to be "not only vigilant, but aggressive" in combating the threats.

The city has faced a spate of anti-Semitic incidents of late, including bomb threats called in to synagogues and Jewish Community Centers and swastikas tagged on a number of public spaces, including on the subway. Over the past week, two Jewish centers received threatening phone calls. Last Wednesday, the Mount Sinai Jewish Center in Washington Heights received a series of threatening calls. On Sunday, the following voicemail was left at Brooklyn’s East Midwood Jewish Center: "Oy vey, we coming to spray your synagogue with pig's blood, the goyim. That's right you kikes, take a hike."

De Blasio called the increased threats, both in the city and nationwide, "a very troubling reality."

"This is a moment in time—a moment in history where forces of hate have been unleashed," de Blasio said today. "And it is exceedingly unsettling to people who are the victims of that hate, who have that hate directed against them." He promised that he and the NYPD would stand with the Jewish community against any hate crimes against it, or any other group:

We don’t take this lightly at all. We understand history and any member of the Jewish community who feels that these threats are not only unsettling but too reminiscent of the past, they have every right to feel that and we understand that. So, our response is to be not only vigilant but aggressive. This is the stance that New York City takes and the NYPD takes in addressing hate crimes - any act of hate, any act of bias that violates the law will be investigated very thoroughly and we will work with district attorneys and with the federal authorities to ensure that there are real consequences for anyone who commits a hate crime.

We need to show that those who purvey hate and break that law will suffer the consequences. And I believe that is one of the key ways that we deter further acts against this community and the other communities that have been suffering at this moment of history. Remember we see three horrible trends right now - increase in anti-Semitic incidents, and in an increase anti-Muslim incidents, and an increase in anti-LGBT incidents all happening in just the last few months. All of which must be addressed very, very aggressively.

O'Neill, meanwhile, urged New Yorkers to report anti-Semitic activity, in hopes of mitigating any attacks. "It can’t just be us though. If you see something out there that doesn’t look right, if you witness somebody committing a hate crime, it’s your duty, it’s your responsibility to make sure you step up and let us know about it," O'Neill said. "Everyday crimes - you got to help us. You got to come forward. It’s your duty and it’s your responsibility."

The mayor also noted that in addition to threats against the Jewish community nationwide, Muslims around the country have been subject to attacks. He pointed out that the two religious groups have helped each other in this current time of strife. "Mosques have, literally, been burned to the ground," he said. "And members of the Jewish community have come forward to help the Muslim community rebuild the mosque. There have been attacks on Jewish cemeteries and members of the Muslim community have come forward to help the Jewish community rebuild and restore the cemeteries." (This happened in Philadelphia, for example.)

De Blasio added, "This is when we find out what we’re made of as Americans. This is when we get an opportunity to live out, more fully, our values. I wish we didn’t have this moment in history but it calls upon us to do something."