Hillary Clinton has condemned Donald Trump, calling him shameful, dangerous and declaring: "I no longer think he's funny."
Clinton launched her attack on the billionaire Republican frontrunner during an appearance on NBC's Late Night with Seth Meyers on Thursday, sparking loud applause from the audience.
In the aftermath of attacks by Islamic extremists in Paris and in San Bernardino, California, Trump has called for monitoring mosques and barring Muslims from entering the United States.
"I think for weeks, you know, you and everybody else were just bringing folks to hysterical laughter and all of that," Clinton told the host.
"But now he has gone way over the line.
And what he's saying now is not only shameful and wrong - it's dangerous."