RAPID CITY, S.D. (KELO) — A Facebook post from Las Vegas involving a young girl has the attention of the Pennington County Sheriff’s Office. 

UPDATE: KELOLAND News has confirmed with family the girl in the post was not Serenity Dennard. Click here for the latest story.

The department is leading the search efforts for Serenity Dennard, who went missing more than a year ago after running away from the Black Hills Children’s Home Society.

Officials with the Pennington County Sheriff’s Office thanked people for all the calls, tips and messages.

KELOLAND News confirmed with Las Vegas Metropolitan Police Department the social media posts are part of an “active and ongoing investigation.”

A spokesperson said anyone with information can contact the Sexual Assault Unit at 702-828-3421.

This is a developing story.