Feb. 14 (UPI) -- Investigators announced finding DNA evidence on the property of Nancy Guthrie's Tucson home that does not belong to her or anyone close to her, in addition to impounding a Range Rover SUV on Saturday.

No arrests have been made in the case two weeks since Guthrie, 84, was reported missing from her Tucson home, but investigators worked from Friday night into the early morning hours on Saturday after discovering the DNA sample on her property.

A Pima County Sheriff's Department spokeswoman on Friday confirmed the DNA discovery but said they do not know to whom it belongs.

"Investigators are working to identify who it belongs to," the sheriff's department acknowledged, while declining to reveal where it was found.

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