Authorities are still searching for the ‘Today’ show host’s mother, Nancy Guthrie, 84, who was last seen on Saturday, Jan. 31, at around 9:48 p.m. local time, police said

Camron, Savannah and Annie Guthrie in a new video posted on Feb. 7.Credit : Savannah Guthrie/Instagram

Savannah Guthrie has shared a new video message for her mother Nancy Guthrie’s kidnappers.

In the video, shared on Instagram on Saturday, Feb. 7, Savannah and her siblings, Annie and Camron Guthrie, can be seen holding hands as they sat together on a couch.

“We received your message and we understand,” Savannah said. “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. This is very valuable to us, and we will pay.”

Nancy, 84, was abducted from her longtime home in Tucson, Ariz., in the middle of the night on Sat., Jan. 31, authorities said.

Authorities continue to investigate an alleged ransom note sent to the media. FBI Phoenix Special Agent in Charge Heith Janke said whoever wrote the ransom note set a deadline of 5 p.m. the evening of Thursday, Feb. 5.

“If a transfer wasn’t made, the second demand was for next Monday,” he said at a press conference, attended by PEOPLE, that same day. “I’m not going to go beyond that.”

On Friday, Feb. 6, the FBI acknowledged a new message potentially tied to Nancy’s disappearance. “The FBI and Pima County Sheriff’s Department are aware of a new message regarding Nancy Guthrie,” the Pima County Sheriff’s Department said in a statement to PEOPLE.

Nancy Guthrie; Savannah Guthrie.Nathan Congleton/NBCU Photo Bank/NBCUniversal via Getty; DZ/Star Max/GC Images

“Investigators are actively inspecting the information provided in the message for its authenticity,” the statement continued.

“While this is one new piece of information, the FBI and the Pima County Sheriff’s Department are still asking anyone with tips to contact the FBI at 1-800-CALL-FBI. The FBI continues to offer a reward of up to $50,000 for information leading to the recovery of Nancy Guthrie and/or the arrest and conviction of anyone involved in her disappearance.”

Nancy’s family initially reported her missing on Sunday, Feb. 1, when she missed church.

Shortly after, law enforcement launched a massive investigation into Nancy’s disappearance, saying they believe the grandmother was taken against her will, Pima County Sheriff Chris Nanos said at a press conference on Tuesday, Feb. 3.

On Wednesday, Feb. 4, the Today show host, 54, and her two siblings made an emotional plea to the potential kidnapper in a video posted on Instagram, asking for the safe return of their mother.

“We need to know without a doubt that she is alive and that you have her,” Savannah said in the video, which was captioned, “Bring her home.”

Nancy was last seen on Jan. 31 when her family dropped her off at her house sometime around 9:30 p.m., Pima County Sheriff Chris Nanos told The New York Times.

A trail of what appears to be blood was seen on the front steps of Nancy’s home that authorities confirmed is hers.

Remnants of a Ring camera had also been removed from the front door area, PEOPLE can confirm.

On Wed., Feb. 4, Nanos said authorities believe Nancy is still alive.

Savannah has been in Arizona with her family as they wait for answers about Nancy.

The FBI has now become involved in the search, urging anyone with tips or leads to call 1-800-CALL-FBI in addition to the Pima County Sheriff’s Office number, 520-351-4900.