An Amber Alert is active for 16-year-old Tiffany Nicole Griffith, missing since Aug. 26. A $1,000 reward is being offered for information

GILMER, Texas — An Amber Alert was issued Monday night for a missing 16-year-old girl.

According to police, Tiffany Nicole Griffith, 16, was last seen Aug. 26 after reportedly jumping out of her bedroom window and leaving her residence.

Griffith is described as being approximately 5-foot-4 inches tall, weighing 145 pounds, with black hair and brown eyes. She was last seen wearing a black shirt, white baggy pants, and black-and-white shoes.

Investigators say they have actively followed numerous leads since Griffith’s disappearance. However, officials say the search has been complicated by conflicting accounts, misinformation circulating on social media and individuals who may be withholding information about her whereabouts.

Police also warned that anyone knowingly harboring, concealing, transporting or otherwise assisting Griffith in remaining hidden could face scrutiny as part of the ongoing investigation.

Officials are encouraging anyone who may have seen Griffith, knows where she is or has information that could assist investigators to contact authorities immediately.

Upshur County Crime Stoppers is offering up to $1,000 for the teen’s whereabouts. Crime Stoppers says they do not want one’s name, since it will remain anonymous.

Anyone with information is asked to call 911, the Gilmer Police Department at 903-843-5545 or Upshur County Crime Stoppers at 903-843-3131.