TUCSON, Ariz. — Savannah Guthrie, the prominent host of NBC's “Today” show, has made a stirring plea for public assistance in the search for her 84-year-old mother, Nancy Guthrie, who has been missing for over a week. During this 'hour of desperation,' Savannah emphasized the urgency of the situation, stating that their attempts to contact the kidnappers have provided no evidence that her mother is still alive.

In a recent Instagram video, Savannah shared her family's anguish, thanking supporters while stressing the need for concrete information that could help investigators. Earlier, the family posted several clips appealing for Nancy's safe return and indicated they would willingly pay a ransom if it led to her being found.

The FBI has clarified that it has not identified any suspects and has not seen any communication between Nancy's family and the suspected abductors. Safety alarms are raised as Nancy requires daily medication, including a heart pacemaker, raising fears for her health.

As part of the ongoing investigation, the FBI continues to encourage anyone with information to reach out, offering a $50,000 reward. The agency has set up digital billboards across major cities in Texas, California, Arizona, and New Mexico urging potential witnesses to come forward.

Authorities are also investigating mysterious ransom letters that have surfaced, although officials have yet to verify their authenticity. Despite the lack of confirmed leads, thousands of tips have been forwarded to law enforcement throughout the past week, all of which are being thoroughly examined.

The community's support has been encouraging, both locally and nationwide. Savannah, in her video appeals, implored viewers far from Tucson to stay vigilant. She was taken and we don’t know where, and we need your help, Savannah stated, signifying the emotional toll this ordeal has taken on her family.

Authorities assumed that Nancy Guthrie was taken against her will from her Tucson home after missing her weekly church service on January 31. DNA tests have matched blood found at her residence to Nancy, raising concerns about her wellbeing. Investigators are persisting in searching the vicinity as well as her daughter's home nearby, revealing a persistent commitment to uncovering the truth.