TUCSON, Ariz. — Savannah Guthrie in an Instagram video Tuesday morning announced a family reward of up to $1 million for the recovery of her mother, Nancy Guthrie.
"I'm coming on to say it is day 24 since our mom was taken in the dark of night from her bed. And every hour and minute and second and every long night has been agony since then," Guthrie said in the video.
The 84-year-old is believed to have been abducted from her Tucson home in the middle of the night on Feb. 1.
The family is also donating $500,000 to the National Center for Missing and Exploited Children, according to the "Today" host's Instagram post, in order to support other families.
"Please keep praying without ceasing," Guthrie said. "We still believe, we still believe in a miracle. We still believe that she can come home. Hope begets hope. As my sister says, we are blowing on the embers of hope."
However, she also acknowledged a grim possibility while pleading for help from anyone with knowledge of what happened to her mother.
"We also know she may be lost," Savannah said. "She may already be gone. She may have already gone home to the Lord that she lives, and is dancing in heaven, with her mom and her dad and with her beloved brother Pierce — and with our daddy."
In the caption, she urged anyone with information to dial 1-800-CALL-FBI (1-800-225-5324).
"You can remain anonymous — or find a way to reach out to me," she added.
The reward can be split if multiple people provide valid leads, and the family had been advised not to offer it sooner to avoid overwhelming investigators, who have already received tens of thousands of calls.
The decision to offer the reward came after consultation with law enforcement.
Nancy Guthrie was last seen on Jan. 31 after going to dinner at the home of her other daughter, Annie. When she failed to meet friends for church the following morning, the family went to check on her and called 911 to report her missing around noon.
Police have not publicly identified a suspect or any persons of interest, but shocking video emerged earlier this month, showing a masked intruder on Guthrie's front steps.
Authorities have been working to identify the clothing he is seen wearing and other items in the video.
One of the Nest doorbell camera images released by the FBI was taken on a different date than the others, a source with knowledge of the investigation confirmed to Fox News Digital Monday.
The new details indicate the masked suspect scouted the home in advance. However, Pima County Sheriff Chris Nanos has pushed back about reporting on the dates of the images as "speculation."
The NCMEC donation has been earmarked for work that actively supports finding missing kids and supporting their families.