KNOXVILLE, Tenn. (AP) -- Two Knoxville women accused of kidnapping and murder have been added to the Tennessee Bureau of Investigation's Most Wanted List.

Twenty-three-year-old Natisha Davis and 28-year-old Trina Littlejohn are said to be on the run from Union County sheriff's officials.

The two are accused of kidnapping a Union County woman during a drug transaction in Union County last month and shooting her in the back.

Warrants have been issued charging them with especially aggravated kidnapping and felony murder.

Two others accused in the killing are being held in the Knox County Jail.

The TBI is offering a $1,000 reward for information leading to their arrests. Investigators are urging anyone who knows their whereabouts to call the TBI at (800) TBI-FIND.

(Copyright 2011 by The Associated Press. All Rights Reserved.)