Lauren Kavanaugh, who became known as the "Girl in the Closet" after surviving years of torture and abuse at the hands of her family, has been charged with sexual assault of a child, Lewisville police said Wednesday.

Lauren Kavanaugh (Denton County Jail)

Police received a tip Monday that a 14-year-old girl had been sexually assaulted by Kavanaugh. The girl told officers that she had been in a "sexual relationship" with Kavanaugh for two months, police said.

Read: The Dallas Morning News' 8-part series 'The Girl in the Closet'

Detectives determined that the victim met Kavanaugh, 25, through a Facebook account titled "The Lauren Kavanaugh Story," which Kavanaugh used to offer friendship and support to victims of abuse, police said.

In an interview with detectives, Kavanaugh admitted to a "sexual relationship" with the teenager and was arrested. She has been charged with sexual assault of a child and is being held in the Denton County Jail with bail set at $10,000.

Police did not provide additional information about the investigation.

Police think there may be other victims and are asking for parents to speak with their children to find out whether they've had inappropriate contact with Kavanaugh.

Kavanaugh, who was abused from ages 2 to 8, was rescued in June 2001 from a closet in her family's mobile home in Hutchins. She weighed 25.6 pounds and had been starved, tortured and repeatedly sexually abused.

Her mother, Barbara Atkinson, and stepfather, Kenneth Atkinson, are serving life sentences for felony injury to a child. They will be eligible for parole in 2031.

The Dallas Morning News profiled Kavanaugh in an eight-part series in 2013 that became a Pulitzer Prize finalist.

After she was rescued, Kavanaugh was adopted by Sabrina and Bill Kavanaugh, who adopted her at birth but had lost custody to her biological mother on a legal technicality.

Kavanaugh appeared on the Dr. Phil show in 2017 to discuss her childhood trauma. She said she hoped going on the show would prevent anyone else from being subjected to abuse like she endured.

Anyone with information about the case may call Lewisville police at 972-219-8477. Anonymous tips also may be sent via text to 847411 with "TIPLPD" included in the message.