The reward for information in the disappearance of “Today” show host Savannah Guthrie’s mother, Nancy Guthrie, has been increased to $200,000 after DNA recovered near the scene failed to match any profiles in federal criminal databases.

Nancy Guthrie, 84, has been missing since Feb. 1, when she disappeared from her home in Tucson, Arizona, The Washington Times reported.

An anonymous donor raised the reward to $200,000 on Wednesday for information leading to her whereabouts or return, according to multiple reports. The FBI said a glove found about two miles from the residence appeared consistent with those worn by a masked individual captured on a porch camera.

Investigators conducted advanced forensic testing, including genetic genealogy analysis, on DNA recovered from the glove in an effort to identify a suspect.

Officials said the analysis did not produce a match in federal criminal databases.

The Pima County Sheriff’s Department said it may turn to additional genealogy databases in an attempt to identify a potential suspect.

Authorities have previously used such techniques in high-profile cases, including decades-old murders in California and the killings of four college students in Idaho, according to The Associated Press.

Officials said the only confirmed biological evidence tied to Nancy Guthrie at the scene was blood found on the front steps of her home.

Investigators have cleared members of the Guthrie family as possible suspects. Former Pima County Sheriff Richard Carmona criticized the department’s handling of the investigation.

“We are just disappointed at the level or lack of leadership at the senior position and some of the remarks that are quite embarrassing,” Carmona said in a statement to Fox News.

Current Pima County Sheriff Chris Nanos denied any rift between his department and the FBI. Nanos told Fox 10 the agencies have a “great working relationship.” The investigation remains ongoing.

Investigators have not ruled out the possibility that an accomplice helped the suspected kidnapper seen in the doorbell camera video outside the Tucson, Arizona, home of Nancy Guthrie the night she disappeared, according to Pima County Sheriff Chris Nanos.

Authorities believe Nancy Guthrie, 84, was forcibly taken from her home in the middle of the night before she was reported missing on Feb. 1, CBS News reported. Nanos informed CBS News partner BBC News that he believes the apparent abduction targeted Guthrie.

Video recovered from Guthrie’s Google Nest doorbell camera, which the FBI shared last week, is the only footage Google has been able to retrieve from cameras at the home, the sheriff’s department said.

Engineers are still working to recover additional video from other cameras on the property. Investigators said they are hopeful technology experts will uncover more usable footage.

The 88-CRIME tipline reward was increased to $102,500 after a $100,000 anonymous donation, the organization said.

That is in addition to a $100,000 reward offered by the FBI. Authorities have not named a suspect or person of interest.

The FBI described the man seen in the video as between 5 feet 9 inches and 5 feet 10 inches tall with an average build.

“Today” show co-host Savannah Guthrie and her siblings, along with their spouses, were cleared as suspects, the sheriff’s department said Monday.

Nanos said the family fully cooperated with investigators.

“We really put them through the wringer,” Nanos said. “We not just interview them, we take their cars, we take their houses, we take their phones, all this stuff and we’re not taking it. They’re giving it to us voluntarily. They have been 100% cooperative with us through everything we’ve asked. They are victims. They are not suspects.”

Investigators are exploring genetic genealogy after DNA recovered from a pair of gloves found about 2 miles from the home did not match any profiles in the FBI’s national database.