WASHINGTON - The U.S. Secret Service said on Saturday night an incident at a campaign event for Republican presidential candidate Donald Trump in Reno, Nevada, began when someone shouted "gun" but no weapon was found.
"Immediately in front of the stage, an unidentified individual shouted 'gun.' Secret Service agents and Reno Police Officers immediately apprehended the subject. Upon a thorough search of the subject and the surrounding area, no weapon was found," the Secret Service said in a statement.
"A thorough investigation is ongoing at this time by the U.S. Secret Service and the Reno Police Department," it said.
Trump was rushed off stage by security agents at a rally in Reno, Nevada, on Saturday night after a perceived security threat as he and Democrat Hillary Clinton swept across states that could prove decisive in Tuesday's presidential election.
The threat was unclear. Two security agents seized Trump by the shoulders and hustled him backstage as police officers swarmed over a white male in the front of the crowd and held him face down on the ground while they searched him.
Moments later, the man was escorted by police away with his hands behind his back. Trump, seemingly unruffled, returned to the stage and continued his campaign speech.
"Nobody said it was going to be easy for us," he said. "But we will never be stopped."
The incident began when Trump noticed what he considered a heckler, saying it was someone "from the Hillary Clinton campaign." A few seconds later people near the stage began pointing at someone in the crowd near the front.
Then agents took Trump away. A CNN reporter at the event who spoke to witnesses to the incident said no one saw a weapon.
In a statement, Trump thanked the Secret Service, Reno and Nevada law enforcement for "their fast and professional response."
The incident occurred as Clinton and Trump make their closing arguments to American voters, crisscrossing the United States in hopes of winning over last-minute undecided voters and rallying their bases to turn out enthusiastically on Election Day.