TUCSON, Ariz. (KOLD/Gray News/AP) — Savannah Guthrie posted a new video to social media Monday afternoon as the search for her mother, Nancy Guthrie, continues into its second week.

In the video, the “Today” show host asked for the public’s help in finding her mom, saying the family is at “an hour of desperation.”

She added, “We believe our mother is still out there. We need your help.”

Savannah Guthrie posted the video ahead of Monday evening’s looming ransom deadline set by the purported abductors. However, she did not mention the deadline in the video.

The Pima County Sheriff’s Department said it will continue to maintain a presence at Nancy Guthrie’s home for security reasons.

The sheriff’s office said this is at the request of the Guthrie family.

Authorities believe Nancy Guthrie was taken against her will from her home just outside Tucson. She was last seen there on Jan. 31 and reported missing the next day after not attending church services.

DNA tests showed blood on Guthrie’s front porch was a match to her and her doorbell camera was disconnected in the early hours of Sunday morning, Pima County Sheriff Chris Nanos has said.

Detectives and agents carried out follow-up work at multiple locations over the weekend as part of the investigation, the Pima County Sheriff’s Department said Sunday.

“Investigators have not identified any suspects, persons of interest, or vehicles connected to this case,” the department said.

Investigators on Saturday were inside daughter Annie Guthrie’s home, about 4 miles from Nancy Guthrie’s house. On Sunday, an investigator was seen using a pole to search an underground tank behind Nancy Guthrie’s home.

Authorities say they have growing concerns about Nancy Guthrie’s health because she needs daily medication. She is said to have a pacemaker and has dealt with high blood pressure and heart issues, according to sheriff’s dispatcher audio on broadcastify.com.

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