A death investigation is underway in Marion County after a body was discovered on 840 block of Belmont Church Road in Whitwell. 

The victim has been identified as 27-year-old Amber Lynn Humphrey. 

Marion County Sheriff Burnett tells Channel 3 her body was found Thursday around 11:30 a.m. CST in an old truck.  

The Tennessee Bureau of Investigation (TBI) has been asked by District Attorney General Mike Taylor to investigate this death.