The national offices of the Anti-Defamation League in New York received a bomb threat from an anonymous caller in what was the latest of a wave that has struck Jewish organizations, synagogues and community centers aross the United States in the past two months.

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New York City Patch reported that the threat was called into ADL’s Manhattan headquarters at about 11:08 a.m. Wednesday, according to police. Neither the report nor the ADL said whether the building was evacuated.

Three days earlier, 11 Jewish community centers across the country were evacuated after bomb threats were called in — the fourth wave of such threats in five weeks. The threats turned out to be hoaxes but forced the evacuation of many buildings.

Two days ago, up to 200 headstones were overturned at a St. Louis-area Jewish cemetery.

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“While there is no information at this time to indicate that this is more than a threat, we are taking it very seriously,” ADL CEO Jonathan Greenblatt said in a statement. “We are working with law enforcement officials to determine if it is connected to similar threats against Jewish institutions across the country.

“This is not the first time that ADL has been targeted, and it will not deter us in our efforts to combat anti-Semitism and hate against people of all races and religions.”

Prime Minister Benjamin Netanyahu has called for an international effort to combat "resurgent anti-Semitism" around the world.

Netanyahu also praised U.S. President Donald Trump for speaking out against anti-Semitism for the first time since the wave of incidents began.

Trump said on Tuesday "anti-Semitic threats targeting our Jewish community and community centers are horrible and are painful and a very sad reminder of the work that still must be done to root out hate and prejudice and evil."

Netanyahu said in response on Wednesday: "It's very important that President Trump took a strong stand against anti-Semitism and it's important that we all continue to do so in the years ahead."