DECATUR COUNTY, Tenn. -

A search is underway in Middle Tennessee for missing nursing student, Holly Bobo.

Investigators have taken out new search warrants at various locations in Decatur County looking for clues.

The Tennessee Bureau of Investigation will not confirm specifically where the searches are taking place or who has been served with the warrants.

It's been nearly three years since Holly Bobo disappeared from her family's home in Parsons, Tennessee.