Secret service agents swarmed Hillary Clinton Wednesday after an animal rights activist crossed a security barrier at a campaign rally in Des Moines, Iowa, and tried to rush the stage.

The demonstrator, Kelsey Atkinson of Chicago, failed to make it to the stage, and he was quickly subdued and removed from the rally.

He was wearing a shirt that read, "Animal Liberation Now."

Clinton didn't skip a beat, and carried on as if nothing happened.

This is the second time in a week that a demonstrator has tried to rush the Democratic presidential candidate during a campaign event.

Secret Service agents sprinted to Clinton's side last week during a rally in Las Vegas after another group of animal rights activists tried to storm the stage.

The protesters heckled Clinton and carried signs bearing slogans that included, "Until Every Animal Is Free."

Four secret service agents rushed the stage to get to Clinton, and quickly surrounded the Democratic presidential candidate as she took a break from her address.

"You're OK," one agent told Clinton. "Keep talking. We'll handle it. We're not going anywhere. Keep talking, ma'am."

Clinton paused for a moment from her prepared remarks and said, "OK, we're going to keep talking."

"Apparently, these people are here to protest Trump," she added. "Because Trump and his kids have killed a lot of animals, so thank you for making that point."