CHAPEL HILL, N.C. (WNCN) — Several buildings, including the ROTC Naval Armory building on UNC-Chapel Hill's campus were vandalized after a "walk out" event during Pro-Palestinian protests Thursday afternoon, university officials said in a statement. Officials said around 150 people gathered at the Wilson Library steps to protest. The event was promoted by UNC Students for Justice for Palestine, TransparUNCy and UNC Graduate Students for the Liberation of Palestine. In a press release from UNC SJP, they said that they were protesting UNC's "continued investments in zionist apartheid and genocide." Freshman student Devin Duncan said, "I heard the noise and I sort of just came out to see what was going on. They were marching through the hallways and in some of the buildings, they spray-painted. I appreciate the passion for the issue, whether I agree with it or not, but, I would encourage people to really be productive in their conversation, productive in their demonstrations." Said junior Ayush Pai, "I was a little disturbed, but I can understand people have some strong sentiments about the Palestine Israel moment." University officials said that after a short event with speakers, the group began moving around the center of campus and "disrupted operations of the University." According to officials, the group entered at least nine academic buildings across campus, shouting and attempting to disrupt classes. The interior and exterior of buildings were also vandalized with spray paint and permanent markers. The ROTC Naval Armory building, which is included in the National Register of Historic Places, was also vandalized, according to university officials. Courtesy: UNC-Chapel HillCourtesy: UNC-Chapel HillCourtesy: UNC-Chapel HillCourtesy: UNC-Chapel Hill “Free expression and peaceful protest are, of course, in line with Carolina’s best traditions. We cannot tolerate, however, vandalism of public property or disruption of classes. We’ll pursue every avenue possible to hold people accountable.” said Chancellor Lee H. Roberts. “We have a beautiful campus maintained by our hard-working facilities staff. We expect everyone who comes to this campus to show respect and care for this historic place and for the people trying to live, work and learn here.” This is an active investigation. Officials said that those who damaged University property or violated state law or University policy may face criminal prosecution and/or referral for discipline through other applicable University disciplinary processes.