CHAPEL HILL (WTVD) -- The Town of Chapel Hill is explaining its show of force over protesters associated with the Occupy Wall Street movement.

On Sunday, officers armed with semi-automatic rifles, rushed a building where activists were squatting and arrested seven people.

Chapel Hill Police said about 70 protesters broke-in to the empty car dealership on West Franklin Street Saturday and set up camp.

One of them, Hannah Shaw, said she was scared when police raided the business.

"Having 20 officers with guns pointed at me and friends of mine, and people I didn't know, it was terrifying it was the first time in my life that I thought, 'I could be killed right now,'" she said. "I actually was not charged with anything. So basically the police are saying I didn't do anything wrong but I, as an unarmed civilian, am somebody who deserved to have an assault rifle pointed in my face."

Chapel Hill police said they took additional security measures, because they believed some members of the group were anarchists, who could've barricaded themselves in the building, and set traps.

Photo by Katelynn Ferrell, Charlotte Observer