Investigators again scoured the desert brush outside the Tucson home of Nancy Guthrie, the mother of "Today" anchor Savannah Guthrie, as officials were reviewing a new message that could be tied to her abduction.

The FBI and the Pima County Sheriff's Department are "aware of a new message regarding Nancy Guthrie Earlier this week, authorities said they were reviewing possible ransom notes. The FBI is offering a $50,

Authorities are still working to identify a potential suspect as they look into alleged ransom notes that have been sent to media outlets.

The FBI is now heavily involved in the investigation into the disappearance of Nancy Guthrie, the mother of "Today" show host Savannah Guthrie. As the family makes another plea for her return, Jan Carabeo breaks down the latest timeline of known events connected to the missing Arizona woman.

When did Nancy Guthrie go missing? Timeline of disappearance. Nancy Guthrie was last seen when she was dropped off at her home by family members the night of Jan. 31. She was repo

It’s been a week since “Today” show host Savannah Guthrie’s mother disappeared from her home in Arizona in what authorities say was a kidnapping

Local and federal authorities said "investigators are actively inspecting the information provided in the message for its authenticity" regarding the disappearance of Nancy Guthrie.

The note signaled movement in the case of the disappearance of the 84-year-old Arizona woman, mother of "Today" show host Savannah Guthrie.