30 black students were booted from a Trump rally. But no one will say they did it.

When 22-year-old Mia Rawls attended a Donald Trump campaign rally on her college campus Monday, she didn’t expect to get kicked out.

But that’s what happened to Rawls and about 30 other black students who attended the rally at Valdosta State University in Valdosta, Georgia. The group decided to attend the rally dressed in black as a symbol of their grievances against Trump, but Rawls said they did not plan to disrupt the event.

"[Trump] has a very dangerous, inflamed, racist, homophobic, sexist, xenophobic rhetoric," Rawls told Vox Tuesday. "He is a major presidential candidate, but we find it troubling that the university would allow him to use that venue."

Valdosta State senior Tamelonie Thomas told Vox Wednesday in an email that she and the other students intended to quietly listen to the speech; they even joined in singing the national anthem.

But before Trump came out to speak, she said, they were escorted out of the school complex by what looked to be local police officers, as Trump supporters looked on and shouted at them. Thomas said they were likely assumed to be Black Lives Matter representatives who would disrupt the rally.

Trump's campaign has denied being involved in removing the students, which had been alleged in other reports. Trump spokesperson Hope Hicks told Vox Tuesday in an email the campaign "had no knowledge of the incidents prior to these false reports."

USA Today reports that Secret Service and Valdosta police both deny responsibility for the decision to ask the students to leave. Video footage of the incident shows Valdosta police directing students out of the arena. Another video shows Valdosta police arguing with students outside about the tickets they purchased for the event.

Valdosta Police Chief Brian Childress was not in the complex at the time of the incident, but he said the students were asked to leave after cursing in the arena, according to a . But the students said they became upset only after they were told to leave, and none of the video evidence shows anyone cursing before their removal.

Several students have suggested racial bias as a factor behind this treatment.

"I think we got kicked out because we are a group of black people," said 19-year-old Tahjila Davis, in a tearful statement to USA Today. "They’re afraid we’re going to say something or do something, but we just really wanted to watch the rally."

Valdosta State’s interim president, Cecil P. Staton, addressed the incident to the university community in an email statement obtained by Vox:

One negative aspect of the event receiving considerable attention today was the removal of a number of people from the rally. While some are suggesting racial motives, law enforcement leaders are rejecting this claim. While this is disturbing, it should be remembered that this was not a VSU sponsored event, but a private function. The Trump campaign, together with the Secret Service and other law-enforcement officials, had responsibility for such decisions, not VSU. As we reminded the campus via email last Friday, current federal law (HR 347) does not allow for protesting of any type in an area under protection by the Secret Service.

Valdosta seniors Rawls and Thomas both expressed disappointment with the university's response.

"I'm very offended by the email," Rawls told Vox. "There was no type of recognition of the fact that students that were kicked out, one of them being myself, were racially profiled."

Earlier on Monday during another Trump speech at Radford University in Radford, Virginia, a different group of predominantly black students were escorted out after chanting during the event. Video footage of the Radford rally also shows a Secret Service agent taking down a Time photographer after a verbal confrontation.

This controversy comes after Trump, who has vocally criticized Muslims and Mexican immigrants, refused to rebuke endorsements from former Ku Klux Klan leader David Duke and other white supremacists during an interview with CNN.

The incidents Monday are just two of a number of the controversial clashes to take place at Trump rallies over the last year. These rallies have gained a reputation for including aggressive outbursts against Trump's opponents.

A video posted Tuesday by New York Daily News columnist Shaun King shows Trump supporters repeatedly shoving a female black protester at a rally in Louisville, Kentucky.

Trump has yet to comment on this, but has condoned aggression toward his critics in the past. Last month at a rally in Las Vegas, he said he’d like to punch a disruptive protester in the face; members of the crowd cheered in response.

With Trump winning seven out of 11 states during the Super Tuesday primary elections, more altercations like these could happen in the future.

Valdosta students expressed being "hurt" by Monday's incident. Tamelonie Thomas said the increased media attention Trump receives from these confrontations is an unfortunate consequence.

"We were there to find common ground," Thomas told Vox. "But instead we were told that we were not allowed any ground at all."