Updated: 10/24, 6:28 p.m.

DALLAS (CBS 11 NEWS) – Dallas Police continue to investigate whether a teenage runaway was sexually assaulted by an adult male at the Occupy Dallas encampment behind City Hall.

A source within the Dallas Police Department who spoke on condition of anonymity because of the ongoing investigation said the girl ran away from home in Garland last month and that she is now refusing to cooperate with investigators. She initially told officers that she had sex with a man in his early twenties and had engaged in sexual activity with several other people.

Some members of the group told CBS 11 the girl identified herself as a 19-year-old and never knew she was 14.

ALSO SEE: Occupy Dallas Protestors Arrested After Bank Blockade

Police were alerted after someone recognized the girl from a picture seen on a flyer asking for help locating a missing teen.

One Occupy Dallas protestor said if the allegations are true measures should be taken to ensure everyone’s safety.

“We’ll find out what the truth is and if that’s her story, that she was having sex with older men in the park, I guess we really need to watch the age group that’s coming in here and get control of that,” protestor Rich Coffman said.

Occupy Dallas organizers said they’ll implement a 10 p.m. curfew and check the identification of anyone seen walking the grounds after that time.

The girl remained in custody as police continued to investigate the allegations Monday evening.

The Occupy Dallas protest, an offshoot of a group staging a protest in New York City called Occupy Wall Street, began more than two weeks ago.

ALSO SEE: Occupy Dallas Protestors Arrested After Bank Blockade

AND: More Occupy Dallas Coverage