GOP 2016 Trump

Republican presidential candidate Donald Trump speaks at a rally Monday, Dec. 14, 2015, in Las Vegas.

(John Locher | The Associated Press)

A Donald Trump rally in Las Vegas turned ugly on Monday evening when a Trump supporter yelled "sieg heil," a Nazi salute, and others called for violence against a Black Lives Matter protester.

An NBC reporter captured the scene on video, after the protester began loudly disrupting Trump's rally.

"There were repeated scuffles as Trump's security escorted protesters out of the auditorium," wrote The Guardian. In the video, the crowd can be seen yelling at the protester and shoving him.

NBC News also reported that some people in the crowd could be heard yelling "shoot him!" "kick his ass! and "light the mother[expletive] on fire!" One man repeatedly shouted "he's a Muslim," and towards the end of the video, a man can be heard yelling the Nazi salute "sieg heil."

Trump reportedly responded to the interruption by saying it just helped him because the cameras turned on the crowds and showed off its size.

It's not the first time Black Lives Matter protesters have become the target of Trump's supporters. In November, an Alabama man was punched, kicked and choked by a crowd at a Trump rally after he began chanting loudly. Trump, seeing the disturbance, said, "Get 'em the hell out of here," and later suggested that the man may have deserved to get "roughed up."

The incident in Las Vegas came the day before Trump and eight other Republican candidates take the stage for the fifth time in the final televised primary GOP debate of 2015.