June 18 update:
The Greene County Sheriff's Department says Sabrina Jones has been found safe.
They haven't provided any other information at this time.
Previous story reported on June 17, 2014:
The Greene County Sheriff's Department is asking for help in locating a missing teenager.
Her mother said that Sabrina A. Jones, 15, left home on Friday with her older sister and another woman.
Investigators believed Jones was still with her sister, Misty Clawson, 37, and Pamela Yvonne Martinez, 36. They may be traveling in a red 2001 Chevrolet truck with Tennessee license plate P3843L.
Anyone with information is asked to call the Greene County Sheriff's Department at 423-798-1800 or the nearest law enforcement agency.