FBI offering $100,000 reward for information on Nancy Guthrie abduction as they release new details about case

The FBI has double the reward on offer in the search for Nancy Guthrie to $100,000.

They're offering the cash if someone provides information which leads to the arrest or conviction of anyone relating to Nancy's disappearance, or leads to her discovery.

Authorities are still pleading for any information after the 84-year-old mother of TODAY host Savannah Guthrie went missing in the early hours of February 1 in Tucson, Arizona, and police believe she was taken against her will.

Nancy has difficulty walking and has a pacemaker fitted, and requires daily medication for a heart condition.

Now, they have also shared some extra details about a potential suspect, after doorbell camera footage has been analysed, showing a masked man on her doorstep.

The FBI’s Operational Technology Division has described the suspect as male, approximately 5’9” - 5’10” tall, with an average build.

Authorities shared a picture taken from the doorbell camera (FBI Phoenix)

They have identified one particular accessory, as in the doorbell video he is seen wearing a black, 25-liter ‘Ozark Trail Hiker Pack’ backpack.

The FBI wrote: "We hope this updated description will help concentrate the public tips we are receiving," and revealed they have received more than 13,000 tips from the public trying to help with the recovery of Nancy.

They added: "Every tip is reviewed for credibility, relevance, and information that can be acted upon by law enforcement."

The suspected abductor also released a 'ransom note' addressed to Nancy's children.

A man was detained in connection with the abduction following the release of the footage, however according to local news outlet KNXV, police later revealed he had been released without charge.

On CNN, a woman was featured giving an interview saying her house was raided in connection with the arrest.

"They had somebody give a tip that the lady was in my house, I told them you can go in and search my house; there is nobody there. I have nothing to hide," she explained.

The FBI has given information about a backpack that was worn by a suspect (FBI Phoenix)

The woman revealed it was her son-in-law who was held but said he 'had nothing to do with that (Nancy's diseappearance)'.

"I’m sorry what’s happened to (the Guthries)," she added. "I don’t know her, I don’t know anything about their lives or what’s going on, but I’m so sorry - whoever took her, I hope she got back safe."

The man later identified himself as Carlos Palazuelos, and revealed he had been detained during a traffic stop as he carried out his job as a food delivery driver.

He spoke to reporters as he wanted to prove he was innocent, and did not know who the Guthries were.

It comes after FBI Director Kash Patel revealed to Fox News that more than one 'person of interest' is being sought.

The Director also shared some of the pictures taken from the doorbell on social media, and wrote: "Someone out there recognises this person."

Savannah also shared the pictures on her Instagram: "We believe she is still alive. Bring her home.

She pleaded: "Anyone with information, please contact 1-800-CALL-FBI (1-800-225-5324) or the Pima County Sheriff’s Department 520-351-4900."