(NewsNation) — The FBI released surveillance photos of a potential subject in the Nancy Guthrie investigation, showing a masked individual.

The FBI said in a social media post that the images were retrieved from residual data in backend systems.

“Working with our partners – as of this morning, law enforcement has uncovered these previously inaccessible new images showing an armed individual appearing to have tampered with the camera at Nancy Guthrie’s front door the morning of her disappearance,” the agency said.

The mother of news anchor Savannah Guthrie has been missing since Jan. 31, with the search entering a second week. Ransom notes have been received in the case.

“We believe she is still alive. Bring her home,” Savannah Guthrie posted on Instagram.

White House Press Secretary Karoline Leavitt said President Donald Trump’s initial reaction to the new photos on Nancy Guthrie investigation is “pure disgust.”

Two ransom deadlines have passed, though there has been no known communication between the family and the suspected kidnappers and law enforcement has not confirmed that the notes are connected to Nancy Guthrie’s disappearance.

After the second ransom deadline passed, the family released a video pleading with the public for information.

“We believe our mom is still out there and we need your help,” Savannah Guthrie said in a short video posted to Instagram.

Authorities have said they believe Nancy Guthrie, 84, was kidnapped or abducted from her home overnight before being reported missing on Jan. 31.

So far, investigators have said they have no suspects or persons of interest in the case, and the subject in the photo is not being described as a potential suspect.

Anyone with information should contact 1-800-CALL-FBI (1-800-225-5324) or the Pima County Sheriff’s Department 520-351-4900.