A chilling demand is made in an alleged ransom note for Savannah Guthrie's missing mom.

Arizona investigators and federal agents are looking into the authenticity of potential ransom notes following the alleged abduction of 84-year-old Nancy Guthrie, mother of NBC “Today” co-anchor Savannah Guthrie, from her home in Catalina Foothills near Tucson.

The Pima County Sheriff’s Department suspects Nancy Guthrie was taken against her will over the weekend, treating the case as a criminal investigation with homicide detectives involved, as they gather physical evidence, digital leads, and tips from the public.

On February 3, a ransom note demanding a large payment in Bitcoin and containing threats surfaced publicly. The note referenced specific details about the case and was forwarded to the sheriff’s office for investigation.

Authorities have not confirmed the legitimacy of the notes but are treating them as potential leads. The FBI is assisting with technical and analytical support related to videos and phone data, as investigators work to determine the credibility of the ransom messages.

The case began on January 31 when Nancy Guthrie was last seen at her home. Concerns about her health have been raised as she requires daily medication, and authorities have emphasized the urgency of finding her.

As the search continues, the community has rallied around the Guthrie family, with a reward offered for information leading to an arrest. Efforts include a candlelight vigil and a plea from Savannah Guthrie for prayers and support.

Authorities have not confirmed any arrests or suspects, emphasizing the active nature of the investigation. The focus remains on actionable tips and public cooperation in providing information and surveillance footage.

The case of Nancy Guthrie's disappearance has drawn widespread attention, with the public and law enforcement working together to uncover the truth behind her abduction. The investigation is ongoing as authorities seek to locate Nancy and bring those responsible to justice.