Hostage negotiators descended on Nancy Guthrie’s Tucson, Arizona home on Wednesday as the investigation into the 84-year-old’s abduction continued for a fourth consecutive day.

The Daily Mail revealed how Nancy, 84, was abducted from her $1 million home late Saturday or early Sunday, according to police.

Authorities confirmed they believe she is still alive despite having no suspects identified on Wednesday.

‘We have nothing else to go on but the belief that she is here,’ Pima County Sheriff Chris Nanos said in a new interview with NBC’s Liz Kreutz. ‘She’s present. She’s alive, and we want to save her.’

Later on Wednesday, the Today Show host asked her mother’s captors to provide proof that she is a live in a heartbreaking plea on Instagram.

President Trump appealed for the return of Guthrie’s mother as authorities frantically search for her, fearing she may not survive without vital medication she needs to take daily.

Hostage negotiators seen at Savannah Guthrie’s sister’s house before Today Show host issues heartbreaking plea

Hostage negotiators descended on Nancy Guthrie’s $1 million Tucson, Arizona home on Wednesday hours before Savannah Guthrie shared a heartbreaking plea to her mother’s captors.

In an Instagram post, The Today Show anchor described her mother in glowing terms alongside her siblings as she asked the captors for proof that her mother is alive.

Guthrie – surrounded by her sister Annie and brother Camron – then said to the potential kidnappers that ‘we are ready to talk’ but wanted proof that they weren’t potentially using fraudulent images of her.

‘We live in a world where voices and images and images are easily manipulated. We need to know, without a doubt, that she is alive and that you have her. We want to hear from you and we are ready to listen. Please, reach out to us,’ she said, holding back tears.

Savannah Guthrie ‘ready to talk’ as she breaks down in new video
Savannah Guthrie demanded proof that her missing mother Nancy is alive in a heartbreaking new video.

Savannah also thanked everyone who offered prayers and support before detailing her ‘beloved mom’ Nancy’s state.

‘She is 84 years old. Her health, her heart is fragile. She lives in constant pain. She is without medicine, she needs it to survive. We too have heard the reports about a ransom letter in the media. As a family, we are doing everything that we can,’ she said.