Donald Trump was rushed off stage by secret service during a campaign rally in Reno, Nevada, on Saturday. In a video posted to Twitter, the Republican presidential nominee can be seen raising his hand to his forehead, as if to get a better view of something happening in the crowd before two secret service agents rush him off the stage.

According to multiple reports, a man in the crowd was wrestled to the ground by local police and then escorted away. He is currently being detained and questioned by authorities.

After the brouhaha ended, Trump reappeared, and reassured the crowd, saying, “Nobody said it was going to be easy for us. But we will never be stopped. Never, ever be stopped.” He then thanked the secret service, saying “These guys are fantastic. They don’t get enough credit. They don’t get enough credit. They’re amazing people.”

Some eyewitnesses are reporting that the man had a gun, however authorities did not find a weapon, sources told ABC. Another eyewitness claims the man had a “Republicans against Trump” sign and that he “got into a scuffle” with the crowd.

Trump’s campaign has already issued an official statement about the incident, in which he once again thanked the secret service and local law enforcement. He has since boarded his plane and left Reno.