The FBI has joined the search for a missing Tennessee girl believed to be in danger.

The Sullivan County Sheriff’s Office says 17-year-old Grace Galliher left her home in Bristol Tuesday with 52-year-old Richard Tester.

Galliher is described as standing 5 feet 9 inches tall with black hair and brown eyes. Tester is described as also standing 5’9″ and weighs about 166 pounds.

Investigators believe they may be traveling in a blue 2004 Chevrolet Trailblazer with Tennessee license plate BZ7-01V.

Anyone with information is asked to call 911.