The purported ransom note in the disappearance of “Today” show co-host Savannah Guthrie’s mother, Nancy, contained chilling details from the night she went missing, authorities said.

The note, sent to a local Arizona news station, contained details about the 84-year-old matriarch’s home in Tucson and what she was wearing on Saturday night when she disappeared, Pima County Sheriff Chris Nanos told CBS News Tuesday evening.

It isn’t clear if the purported note sent to CBS affiliate KOLD-TV in Arizona, which chose not to report its exact contents, is the same that was sent to TMZ Tuesday.

Savannah Guthrie and her mother, Nancy Guthrie, smiling at the camera.
“Today” show co-host Savannah Guthrie’s mother, Nancy, disappeared Saturday night.savannahguthrie/Instagram
Nanos refused to say whether the details in the note matched the crime scene — where drops of blood and signs of forced entry were found.

“It’s like any piece of evidence. You give it to us, you give us a lead, we’re going to look at every aspect of that lead,” Nanos said.

Nancy Guthrie’s house in Tucson, Arizona, showing a brick exterior, arid landscaping, and a gravel driveway.
The purported ransom note contained details about Nancy Guthrie’s home in Tucson, Arizona.Rebecca Noble for NY Post
Investigators have analyzed the note and are taking it seriously, the sheriff added.

Nanos said the FBI reviewed the note and shared it with Savannah.

Possible blood spatters on the terracotta tiles at the front door of Nancy Guthrie's Tucson home.
Possible blood spatters seen at the front door of Nancy Guthrie’s home.BACKGRID
Authorities had hoped to keep the note’s details from becoming public before it reached the media, he added.

Nanos again refused to say how many people might be involved in Nancy’s abduction.

Nancy Guthrie's house in Tucson, Arizona, as seen from an aerial view, with a swimming pool and desert landscaping.
Nancy Guthrie’s home in Tucson, Arizona.Rebecca Noble for the NY Post
“It could be one, it could’ve been more, I don’t know,” he said.

The sheriff also addressed Nancy’s kidnapper or kidnappers directly, saying that “the clock is literally ticking,” as she requires life-saving daily medication.

Savannah Guthrie and her mother Nancy smiling for a selfie.
“Today” co-host Savannah Guthrie with her mom, Nancy, in an undated photo.Instagram/savannahguthrie

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“You’ve placed her in great jeopardy without giving her meds that are critical to her. Again, like I’ve said, could be fatal if she doesn’t get those meds,” Nanos said.

Savannah Guthrie, who has been with NBC News for nearly two decades, has called off her trip to Italy to cover the Winter Olympics as authorities scramble to search for her mother.