Donald Trump was rushed off stage Saturday night during a campaign rally in Reno, Nev., as security officials swarmed, but the candidate emerged back on stage after a few minutes and finished his speech.

Some kind of a disturbance had occurred in the front of the room where the Republican nominee was speaking. He put his hand above his eyes to peer out into the crowd. As he did so, a security official rushed to Trump's side and escorted him off stage. People near the front of the room suddenly scattered as U.S. Secret Service and uniformed officers jumped the barricades to apprehend an unidentified man.

Trump later concluded his rally without further incident. It was not immediately clear what the cause of the disturbance was.

In a statement, the Secret Service said a person in front of the stage had shouted "Gun!" but that no weapon was found after a search of the person and the immediate area. The person was apprehended, but officials did not identify the person or disclose whether he had been charged with a crime.

The Secret Service said an investigation into the incident was ongoing.

The GOP presidential nominee later released a statement thanking the Secret Service and local law enforcement for their "fast and professional response," adding that "nothing will stop us – we will make America great again!"

Meanwhile, a press bus carrying reporters covering Democratic vice-presidential nominee Sen. Tim Kaine's stops in Florida was hit at high speed, according to reporters traveling with the senator. There were no immediate reports of injuries. Kaine was several cars ahead of the press bus, according to reporters in his motorcade.

Trump's stop in Reno on Saturday was his third of the day. He's scheduled to campaign in Colorado later in the day.

Before the disturbance, Trump accused officials of wrongly keeping polling sites open late in Nevada's Clark Country in order to boost Democratic early-voting turnout.

There appears to be no evidence that is the case.

Trump was also sounding confident about his chances in the state, despite a surge in early-voting by Democrats and Latinos that has Democrats feeling optimistic.

"They didn't get the kind of vote that they needed to stop us on Tuesday," Trump said.

Trump is also went after Senate Democratic leader Harry Reid, calling him "Crazy Harry."

And he continued to mock his rival Hillary Clinton's star-studded get-out-the-vote events, saying that she needs to appear alongside celebrities or else nobody will attend her events.

Washington Post, Associated Press

