Police have arrested one man and are asking for the public's help in finding two others who they say "intimidated" a protester and threatened her life. It happened Monday night in Zucotti Park where Occupy Wall Street demonstrators have been camped out for six weeks.

The men approached the woman and one made the threat to kill her because she filed a complaint against a friend who was arrested. The woman had accused him of assaulting her and a few friends two weeks ago.

Late Tuesday police arrested Hasan Castillo, 23, of East Orange New Jersey and charged him with intimidating a witness.

The protest against "corporate greed" and "economic inequities" has been non-violent and peaceful for the most part. Suzanne Sutton, a member of the protest group's so-called Peace Council, called any criminal activity among protestors "intolerable" and pledged to cooperate with the NYPD. She told PIX 11 News, "We don't tolerate violence here. We are very strict. All of our actions that we do are in the principle of non-violence and we make sure people are safe here." The group says it has a volunteer security team that polices the park 24/7.

Two other men are being sought by police: one is described as a black male, 16-18 years old with a thin build. He was last seen wearing a brown hat with a white shirt that had the words "Stone Harbor" printed on the front. The second one is also a black male, 18-20 years old, 5'8", with a medium build, black hair and black beard. He was last seen wearing a black hooded sweatshirt.

Anyone with information about these men is being asked to call the police hotline at 1-800-577-TIPS.