The 84-year-old mother of "Today" co-host Savannah Guthrie is believed to have been abducted from her home on Feb. 1, 2026. (Fox Nation)

The Pima County Sheriff's Department on Thursday said it has not been contacted by Mexican authorities amid news reports that an anonymous tip had prompted a search effort for Nancy Guthrie south of the border.

Ramona Guadalupe Ayala Ortiz, head of Buscando Corazones Nogales in Sonora, Mexico, said the collective received a tip that a grave belonging to Guthrie, 84, may have been found.

The tipster said searchers could find a body matching Guthrie's description in the Mariposa area near Nogales, Sonora, Mexico, 12 News reported. Buscando Corazones Nogales works to locate people missing in Mexico.

SHERIFF WARNS NANCY GUTHRIE SUSPECT COULD 'ABSOLUTELY' STRIKE AGAIN, HINTS AT MOTIVE

A missing poster for Nancy Guthrie is displayed near a border wall amid reports of an anonymous tip that prompted a search for her south of the border. (Fox News Digital/Getty Images)

In a statement posted to social media, Pima County Sheriff Chris Nanos said the department was aware of the reports regarding the anonymous tips.

"At this time, we have not been contacted by Mexican authorities," he said. "This investigation remains active and ongoing, and we will continue to follow up on any credible information."

BORDER PROTOCOLS AUTOMATICALLY TRIGGERED IN SEARCH FOR NANCY GUTHRIE, RETIRED AGENT SAYS

Nancy Guthrie's missing person billboard is displayed in Phoenix, Arizona, on Feb. 6, 2026. Guthrie has been missing since early February 2026. (KSAZ/Unknown)

Guthrie vanished from her Tucson, Arizona, home in February. Authorities have said they believe she was abducted, but there is no evidence that she was taken across the southern border.

Doorbell camera video shows a masked man wearing gloves on the front steps of the home around the time of Guthrie's abduction. The footage also captured a masked individual creeping up to the home three weeks earlier.

A split image shows Pima County Sheriff Chris Nanos speaking to reporters about the suspected abduction of Nancy Guthrie, alongside an image of Guthrie seated during a game of mahjong. (Rebecca Noble/Reuters, Courtesy of NBC)

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Her back door was also propped open by the time police arrived hours later, prompting questions about whether more than one person was involved. Supposed ransom notes were sent to TMZ and local media, but no one has been arrested in connection with the case.

Louis Casiano is a reporter for Fox News Digital. Story tips can be sent toย louis.casiano@fox.com.

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