A Florida man has been charged with threatening a New York-based Jewish organization after federal prosecutors said he left a foul-mouthed voicemail saying he wanted to “cause mass genocide.”

Deep Alpesh Kumar Patel, 21, from Sarasota, allegedly called the World Jewish Congress on Oct. 21 and recorded a voicemail that opened with the caller identifying himself by name, before launching into an unhinged, expletive-riddled tirade against Jews, according to a criminal complaint released by the Justice Department.

“I want to let you guys know, f–k all of you. F–k all of you Israelis,” Patel ranted on the call. “I wish you guys to go hell.”

Patel’s hateful diatribe culminated with an apparent threat of homicidal violence.

“If I had a chance, I would kill every single one of you Israelis,” Patel was quoted in the complaint as saying. “Every single one of you! Cause mass genocide of every single Israeli.”

The World Jewish Congress was founded in Switzerland in 1936 to act as “the diplomatic arm of the Jewish people” and to mobilize democratic forces against the onslaught of Nazis in the lead-up to World War II.

The menacing voicemail targeting the organization swiftly triggered an FBI investigation, which led to Patel via his phone number.

Law enforcement officials visited the 21-year-old at his home in Sarasota on Oct. 24, and Patel confirmed making the phone call to the World Jewish Congress — but denied threatening anyone. 

“When the officers asked Patel to describe the content of the telephone calls, he explained that he had called Jewish centers to express his family’s anger with Israel for the genocide of the Palestinian people,” the complaint read. “Patel stated that he did not intend to scare or threaten anyone, but that he wanted to use the harshest language possible to convey his anger.”

Patel was charged with transmitting in interstate commerce a true threat to injure.

If convicted, the 21-year-old could face up to five years in federal prison.