Police activity connected to the search for Nancy Guthrie, the missing mother of US news anchor Savannah Guthrie, is under way at a residence about two miles from her home.
Armed police teams have been seen coming in and going from the area, with a sheriff's vehicle blocking the road.
It comes after local officials said investigators had found DNA at Guthrie's address which does not belong to her or anyone close to her.
The 84-year-old disappeared in the middle of the night from her home in Tucson, Arizona, nearly two weeks ago. Authorities believe she was taken against her will.
In a social media post, the sheriff's department stated law enforcement activity was ongoing related to the Guthrie case without providing further details.
Pima County Sheriff Chris Nanos told local media outlet KOLD that investigators were actively working a lead. More than a dozen law enforcement vehicles, both marked and unmarked, have been seen in the area, including SWAT teams and forensics.
Investigators have also located several gloves, with the closest discovered about two miles from Nancy Guthrie's home. The sheriff's department emphasized that reports of a glove found inside her home or on her property are inaccurate.
All collected evidence has been sent for laboratory analysis. The FBI has increased its reward for information regarding Guthrie's disappearance from $50,000 to $100,000.
In an effort to gather more clues, investigators have requested video footage from nearby residents. Savannah Guthrie and her siblings have made emotional pleas on social media, believing their mother is still alive and expressing willingness to pay for her safe return.
Police have reiterated that Nancy Guthrie, who requires daily medication and has limited mobility, remains a priority in ongoing investigations.
