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U.S. Secret Service agents detain a man after a disturbance as U.S. Republican presidential candidate Donald Trump spoke at Dayton International Airport in Dayton, Ohio, March 12, 2016. William Philpott/Reuters

UPDATE: 9:21 p.m. EST -- Donald Trump said he is going to ask law enforcement officials to arrest protesters at his rallies, the Associated Press reported. He said that fear of an “arrest mark” on people’s records might deter them from coming to the rallies.

UPDATE: 6:30 p.m. EST -- New video emerged Saturday evening from a Donald Trump event near Dayton, Ohio, on Saturday, in which a member of the crowd tried to rush the stage before being apprehended.

According to Reuters, Secret Service agents rushed to protect Trump during the disturbance, which came just one day after rowdy protests forced the cancellation of a Trump event in Chicago.

Four Secret Service agents surrounded Trump onstage in Ohio after the suspect apparently broke through a security barrier around the stage at Dayton International Airport, Reuters reported.

Agents then grabbed the man, dressed in a black T-shirt and jeans, and hauled him away. His motivation was not immediately clear, and Trump went on to finish his speech.

Original story:

As Republican presidential front-runner Donald Trump hops from city to city making campaign stops, violence has marred a number of his rallies. While law enforcement has often had to escort protesters out and even levy criminal charges in some cases, police departments said they have approached the rallies no differently than they would any other large-scale event — despite their contentious nature.

“How you handle people isn’t different, it’s just on a larger scale,” said Sean Swain, a spokesman for the Cumberland County Sheriff’s Office, which staffed a Trump rally in North Carolina where a protester was sucker-punched by a Trump supporter. “It doesn’t matter what the venue is; you want to get the parties separated, de-escalate the situation and let the show continue.”

Protesters have increasingly assembled at Trump's events and have been taunted or physically assaulted by the New York businessman’s supporters. Violence also sprung Friday in St. Louis, where numerous arrests took place, and a man was bloodied amid thousands of people who turned out to hear Trump speak. It was unclear how the man suffered his injuries, but Trump protesters could be seen taunting the mostly African-American protesters, creating an increasingly acrimonious atmosphere.

At a Las Vegas rally late last year, a group of Trump supporters screamed that someone should light a protester on fire, “kick his a--” and “shoot him,” while another person in the crowd shouted “sieg heil,” a Nazi salute.

In a separate instance Thursday, police were escorting one protester, Rakeem Jones, from a North Carolina rally when Jones was punched in the face by a man in the arena's stands. A number of police officers reacted by aggressively subduing Jones and did not immediately respond to the assailant.

The Trump staff came to tell the officers that Jones was being disruptive and said they wanted him out. Swain said because nobody paid for a ticket to the event, anyone could be asked to leave at the behest of Trump’s staff.

The man who punched him, John McGraw, has since been charged with assault and disorderly conduct. “The next time we see him, we might have to kill him,” he was quoted as saying.

Confrontations have erupted at a number of other Trump events, including one in Louisville, Kentucky, at the beginning of March, where Trump supporters shoved, hit and cursed at an African-American protester. Louisville Police spokeswoman Alicia Smiley said they planned the event with Secret Service officials but added that police encountered nothing that they haven’t dealt with before.

“We have the Kentucky Derby every year,” Smiley said. “We were aware there was going to be a number of people, and we also were prepared for protesters; most of them were outside.”

Trump scheduled another campaign stop schedule in Chicago at the University of Illinois at Chicago Pavilion on Friday, but later postponed it, saying he didn't want to see people hurt. A Facebook group indicated a large student-led protest would take place at the event, which took place at a venue of 7,000 seats.

“The Chicago Police Department has extensive experience managing large-scale special events,” Chicago police said in a statement before the protest was canceled. “We have a working relationship with the Secret Service and are coordinating very closely with them, Chicago Fire and the university on everything from logistics to traffic to safety and security.”

Chicago police told ABC News they were not in contact with Trump's campaign regarding the cancellation and did not tell the campaign to postpone it. Protests broke out at Trump's Chicago rally before he even got to the event, which was staffed by about 300 officers, one of whom was hit on the head with a bottle, CNN reported. Trump supporters could be sign fistfighting with protesters.

Two more Trump events Saturday have been planned in Ohio this weekend — one in Cleveland and one in Dayton, where a police spokesperson deferred comment on the setup to the Secret Service, which did not immediately return a request for comment.

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