East Ridge are asking for the public's help in locating a 68-year-old woman who authorities fear may have harmed herself.
Nancy Williams was last seen by her husband Monday morning as he left their Meadowlark Trail home to go to work, said East Ridge Police Detective Gwen Cribbs.
Williams, who has a long history of mental illness, recently made a comment that if she were to kill herself she would want to die by asphyxiation. Her family noticed a water hose is missing at their home.
Williams turned off her cell phone a few days before she disappeared, so authorities can't trace her using that method, Cribbs said.
Family members searched for Williams and the car she was her car at state parks, Cribbs said.
She was driving a 2002 silver Honda Accord four-door EX with Tennessee tags reading NR4RR and two large antennas for ham radio.
Williams' ham radio call number is the same as her car tag, Cribbs said, and no one has heard her on the air recently.
Williams previously went missing in April 2010 on a nature walk and was later found dehydrated in a wooded area in East Ridge.
Williams is 5 feet 4, weighs 110 pounds and has white-blonde hair and blue eyes.
Anyone with any information is asked to call East Ridge Police Department at 423-622-1725.