This story has been updated.

Donald Trump’s rally in Las Vegas on the eve of the next GOP debate turned chaotic on Monday as protesters shouted slogans and audience members screamed back.

Trump was interrupted several times by protesters shouting slogans supporting gun control and “Black lives matter!,” prompting a furious reaction from the crowd. Some screamed, pointed, and at one point shoved a heckler as hotel security swooped in to remove them.

The first protests began after Trump invited Jamiel Shaw, a supporter, to the stage to recount how he lost his son after an undocumented immigrant gang member shot him while walking home. One protester who shouted in response that the story showed the need for gun control was promptly removed by professionals, a scene that played out repeatedly through the night.

As one man was dragged away, people in the crowd variously yelled, “Shoot him!” “Kick his ass,” and “Light the motherf—-r on fire!”

A large middle aged man shouted, “Sieg heil!” — a Nazi Germany-era salute — as the protester was taken away. The man, whose motives were not clear, was far enough from the stage that it was unlikely Trump heard the remark.

Another protestor dragged out. Man in suit screaming: "He's a Muslim guy! He's a Muslim guy!" — Benjy Sarlin (@BenjySarlin) December 15, 2015

The man who was removed as remarks above were shouted, Ender Austin III, told Buzzfeed News he was upset about Trump’s remarks towards Muslims, a group the candidate has proposed temporarily barring from entering the country. He said he was not arrested after being taken from the venue and placed in police custody.

This story originally appeared on MSNBC.com