Jewish groups blasted Republican presidential candidate Donald Trump for his proposal to block all Muslims from entering the United States.

“A plan that singles out Muslims and denies them entry to the US based on their religion is deeply offensive and runs contrary to our nation’s deepest values,” the Anti-Defamation League said in a statement Monday evening, hours after Trump, a real estate billionaire and reality TV star, issued his call.

“In the Jewish community, we know all too well what can happen when a particular religious group is singled out for stereotyping and scapegoating,” Jonathan Greenblatt, ADL’s CEO said. “We also know that this country must not give into fear by turning its back on its fundamental values, even at a time of great crisis.”

Donald Trump Calls for 'Total and Complete Shutdown' of Muslims Entering U.S.

'Trump running for President as a fascist demagogue,' O'Malley tweets, first in a wave of widespread condemnation of Trump's proposal; but Republican candidate unfazed by critics:'I don't care,' he tells supporters at South Carolina rally.