Correction: An earlier version of this story said Nathan Phillips was a Vietnam veteran. He served in the U.S. Marines but was not deployed to Vietnam.

After short clips of an incident between students from Covington Catholic High School and a man at the Indigenous Peoples March in Washington D.C. went viral Saturday, people are now sharing full-length clips of the incident.

People across social media have responded to the video saying it shows the students were provoked and that the man put himself in that position. One video is almost two hours long.

The indigenous man, Nathan Phillips, said he stepped in to diffuse the crowd of students who were interacting with a group he identified as the Black Hebrew Israelites. Phillips is a veteran and Native American elder of the Omaha tribe.

The short video shows a faceoff between Covington Catholic student Nick Sandmann, wearing a "Make American Great Again" hat, and Phillips as a larger group of students jump and clap to the beat of Phillips' drum. Sandmann appears to have a smirk on his face. He and Phillips are nearly touching in the video.

Sandmann released a lengthy statement Sunday night in which he said: "I believed that by remaining motionless and calm, I was helping to diffuse the situation. I realized everyone had cameras and that perhaps a group of adults was trying to provoke a group of teenagers into a larger conflict. I said a silent prayer that the situation would not get out of hand.

"... I did smile at one point because I wanted him to know that I was not going to become angry, intimidated or be provoked into a larger confrontation."

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In an interview with the Detroit Free Press, Phillips said the incident started as the Covington Catholic students were observing a group of Black Hebrew Israelites talk, and started to get upset at their speeches.

Phillips said some of the members of the Black Hebrew Israelites group were also acting up, "saying some harsh things" and that one member spit in the direction of the Catholic students.

"So I put myself in between that, between a rock and hard place," Phillips said.

The Enquirer has not verified the identity of the person who took and posted the video. One video seems to be posted by a member of the Black Hebrew Israelites.

In one video, a man talks to the students, who are gathered on the stairs outside the Lincoln Memorial.

At one point, a student walks down the stairs, takes off his jacket and shirt, which causes the students to yell. They start a small chant, similar to what would be heard at a pep rally. After that, the student puts his shirt back on and goes back into the crowd.

Shortly after that, Phillips can be seen walking past the Black Hebrew Israelites and toward the students, who have sat down on the stairs.

The students then gather around Phillips, after roughly five minutes, the crowd begins to disperse.

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In another video, one of the men apparently addresses a student in the crowd, saying there is one black student. The man proceeds to make references to "Get Out," a horror movie about a black man who learns a disturbing secret when he meets his white girlfriend's family.

The man in the video says "get out" and uses a racial slur, to which the crowd of students responds with surprise. One student yells, "Why are you being mean?"

On social media some Covington Catholic backers posted messages of support for the students in the video, saying nobody should be expelled because they were not provoking Phillips and had in turn, been provoked themselves.

Others continued to express disappointment in the students' actions, including a petition on Change.org, which called for a number of changes to the school and its involvement inthe March for Life.

Short videos go viral

The school and the Roman Catholic Diocese of Covington issued a joint statement Saturday afternoon after millions viewed videos of the incident. The school has traditionally sent students to D.C. for the annual March for Life, which took place at the same time as the Indigenous Peoples March.

"We condemn the actions of the Covington Catholic High School students towards Nathan Phillips specifically, and Native Americans in general ... We extend our deepest apologies to Mr. Phillips. This behavior is opposed to the Church’s teachings on the dignity and respect of the human person."

"The matter is being investigated and we will take appropriate action, up to and including expulsion," the Diocese said.

The Enquirer reached out to Diocese on Sunday afternoon but did not receive a response. Several messages left with school administrators and parents of students were not returned since the incident went viral Saturday morning.

Chase Iron Eyes, a spokesman for the Indigenous Peoples March and an attorney for the Lakota People's Law Project, told The Enquirer that the inaugural march was intended in part to condemn the ongoing federal government shutdown.

Watch the videos below:

Disclaimer: The videos contain strong and racially-charged language that may offend some viewers.