By bizn_fun 
Mystery surrounds the disappearance of Nancy Guthrie, the mother of US TV host Savannah Guthrie.
The 84-year-old went missing from her home in Arizona under suspicious circumstances.
She was last seen at her home near Tucson on the evening of 31 January and was reported missing the following morning.
A notice circulated by the Pima County Sheriff’s Office requests information on the disappearance of Nancy Guthrie. Pic: Reuters
Investigators said they had found signs of forced entry and believe she was taken against her will.
Here’s everything we know so far.
What do we know about the disappearance?
The NBC News anchor’s mother was last seen at roughly 9.30pm on 31 January, when she was dropped off at home by family after having dinner with them, the sheriff’s department said.
Ms Guthrie, who lives alone, was then reported missing by her family the next day, Sunday, after she did not attend church.
Ms Guthrie has a pacemaker and needs daily medication, and her family and authorities have said they are concerned her health could be deteriorating by the day.
Nancy Guthrie disappeared from her home in Tucson. Pic: Reuters
What do we know about the investigation?
Search and rescue teams were supported by volunteers, Border Patrol, and the homicide team after Ms Guthrie was reported missing. They were stood down by the end of 2 February as the case became a criminal investigation.
Police have said there were signs of forced entry at the property, and DNA tests showed blood found on Ms Guthrie’s front porch matched hers, the county sheriff has said.
Pic: AP
Investigators also found her doorbell camera was disconnected early on 1 December, with software data recording movements at the home minutes later.
Investigators have been unable to recover the footage because Ms Guthrie did not have an active subscription to the service.
Police officers have been reviewing information from licence plate cameras and surveillance video from nearby homes while working to analyse data from local phone towers.
Read more:
Epstein files: The key findings so far
Ransom notes
At least three media organisations reported receiving apparent ransom notes during the week after Ms Guthrie’s disappearance, which they handed over to the police.
One man was arrested in Los Angeles on Thursday, accused of sending texts to Ms Guthrie’s family asking about Bitcoin demanded in a reported ransom letter, according to a federal criminal complaint out of Arizona, NBC News reported.
The messages were not linked to the other reported ransom demands.
Heith Janke, the FBI chief in Phoenix, said details in the messages to news organisations included a demand for money, with a deadline for Thursday evening and a second deadline for Monday if the first one was not met.
At least one note mentioned a floodlight at Ms Guthrie’s home and an Apple watch, he added.
On Friday, KOLD-TV in Tucson said it received a new message, via email, linked to Ms Guthrie’s case. The station said it could not disclose its contents and the FBI said it was reviewing the message’s authenticity.
Nancy Guthrie and her daughter, Today show cohost Savannah. Pic: Savannah Guthrie/Instagram
‘Vehicle of interest’
Police investigating the disappearance were searching a vehicle in Arizona that may be connected to the investigation, NBC News reported on Friday.
A spokesperson for the convenience store chain Circle K told the broadcaster, Sky News’s US partner, that officers visited one of their stores after “receiving a tip regarding a vehicle of interest, and our team has provided them access to the store’s surveillance video”.
Officials have not said whether the vehicle or vehicles are connected to any part of the disappearance.
The FBI has offered a $50,000 reward for information about Ms Guthrie’s whereabouts.
What has Savannah Guthrie said?
On Wednesday, Savannah Guthrie shared a video on social media in which she addressed her mother’s captor alongside her sister Annie and brother Cameron.
“We are ready to talk,” the anchor said. “However, we live in a world where voices 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 added: “Our mum is our heart and our home. She is 84 years old. Her health, her heart, is fragile. She lives in constant pain. She is without any medicine. She needs it to survive, she needs it not to suffer.
“Mummy, if you are hearing this, you are a strong woman. You are God’s precious daughter.”
Shortly after the video was posted, Donald Trump wrote on Truth Social: “I spoke with Savannah Guthrie, and let her know that I am directing ALL Federal Law Enforcement to be at the family’s, and Local Law Enforcement’s, complete disposal, IMMEDIATELY.
“We are deploying all resources to get her mother home safely. The prayers of our Nation are with her and her family. GOD BLESS AND PROTECT NANCY!”
On Saturday, she told the potential kidnappers her family “will pay” for her safe return.
“We received your message and we understand,” she said, speaking alongside her siblings Cameron and Annie in an Instagram video. “We beg you now to return our mother to us, so that we can celebrate with her.”
“This is the only way we will have peace,” she added. “This is very valuable to us, and we will pay.”
Savannah Guthrie co-hosts Today, the morning show on NBC News, the US sister network of Sky News.
She often brought her mother on as a guest. Speaking on the show in 2022 on Nancy Guthrie’s 80th birthday, she said: “She has met unthinkable challenges in her life with grit, without self-pity, with determination and always, always with unshakeable faith.
“She loves us, her family, fiercely, and her selflessness and sacrifice for us, her steadfastness and her unmovable confidence is the reason any of us grew up to do anything.”