DEKALB COUNTY, Ga. -- DeKalb County police said Tuesday they hope the public will be able to help locate a 13-year-old girl who has been missing since December 10.

Andrea Lois Key, 13, was last seen at her house on Audubon Drive in December.

According to detectives, she had been communicating online with an unknown man.

Since Key’s disappearance, officers have reached out to family, friends and acquaintances, DeKalb police said. Police said they have exhausted all leads and they hope the public can help.

Key was last seen wearing a red shirt and dark blue jeans. She is described as a black female, 4 feet 10 inches tall, 100 pounds with black hair and brown eyes.

Anyone with information about Key should contact the DeKalb County Police Department’s Special Victim’s Unit at (770) 724-7710.