Nancy Guthrie update: Investigators are looking into reports of suspicious activity in her neighborhood

Investigators on the Nancy Guthrie task force are looking into reports of suspicious activity around her neighborhood, the Pima County Sheriff's Department told Fox News Digital Friday.

Guthrie is the mother of "Today" co-host Savannah Guthrie, who has assumed a low profile as the investigation stretches on with few publicly available answers.

"I can tell you that investigators are looking into reports of anything suspicious in that area," she said.

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And authorities have also not been able to confirm whether the masked man at Guthrie's front door acted alone.

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"I have not been advised of additional video identified in this investigation," the spokesperson told Fox News Digital.

"The sheriff said early on in the investigation that investigators had interviewed the Uber driver and they had not been considered suspects or persons of interest in this case."
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Guthrie is believed to have been taken against her will, according to Pima County Sheriff Chris Nanos.

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However, authorities have been unable to catch a suspect or find her so far.

Anyone with information is asked to dial 1-800-CALL-FBI.

There is a combined reward of more than $1.2 million for information that helps crack the case.