A package containing anti-Semitic and threatening content was received at the Young Israel of Bal Harbour in Southeast Florida on Monday.
Inside the package was a DVD, a photo of someone pointing a gun and anti-Semitic writing, sources told COLLIVE.
Police are investigating the incident.
“It must be known that the Jewish community will NOT cower in fear. We stand strong, united and proud,” Bal Harbour Mayor Gabriel Groisman tweeted.