The Jewish manager of West Side Judaica was beaten in front of the store on Monday afternoon. Photo: Walkertwo NYC, Google Plus.

The Anti-Defamation League said on Tuesday it was horrified by an antisemitic assault at a Judaica shop in Manhattan’s Upper West Side neighborhood on Monday.

“We are deeply disturbed by this horrific assault and shocked that it occurred in broad daylight in a neighborhood where Jews largely do not fear being singled out for violence,” said Evan R. Bernstein, ADL New York Regional Director, lauding the NYPD for investigating the incident as a possible hate crime.

The ADL was responding to a police report on Monday stating that the Jewish manager of a Judaica shop on the Upper West Side was beaten up by a self-declared Muslim assailant outside his shop, who threatened to kill him.

“F***k You Jews. I’ll Kill You; I’m a Muslim,” the attacker, described as a man in his 20s, shouted as he punched the West Side Judaica manager in front of his shop, before fleeing on his razor scooter. The 52-year-old manager said he feared the attacker would start beating him with the scooter as well.

The ADL noted a 14 percent increase in antisemitic incidents in New York — which boasts the largest Jewish community on the planet — in 2014.

Earlier, Council member Mark Levine, chairman of the NYC Jewish Caucus, said in a statement that the incident is a “stark reminder that no neighborhood in New York City is immune from the mounting threat of antisemitic attacks.”

He said Monday’s attack and every other hate crime must be “denounced in the strongest terms.”