The search is ongoing for 84-year-old Nancy Guthrie, the mother of "Today" show host Savannah Guthrie, who investigators say appears to have been kidnapped from her Tucson, Arizona, home in the early hours of Sunday, Feb. 1.
The FBI has released photos and videos of an armed person in a mask in front of her home, appearing to tamper with a security camera.
Anyone with information is urged to call 911 or the Pima County Sheriff's Department at 520-351-4900.
Click here for the detailed timeline of the investigation into Nancy Guthrie's disappearance.
Pima County Sheriff Chris Nanos said Monday that members of the Guthrie family are “cleared” as suspects in Nancy Guthrie’s disappearance.
“To be clear … the Guthrie family -- to include all siblings and spouses -- has been cleared as possible suspects in this case,” the sheriff said in a statement. “The family has been nothing but cooperative and gracious and are victims in this case.”
“The Guthrie family are victims plain and simple,” the statement said.
ABC News previously reported that, according to law enforcement sources, investigators were leaning away from the Guthries as suspects.
-ABC News’ Aaron Katersky
The FBI and Pima County Sheriff’s Department briefly detained a second man and searched a house a short drive from Nancy Guthrie’s Catalina Foothills neighborhood late Friday into early Saturday, but there was no arrest and no sign of Guthrie, law enforcement sources told ABC News.
The sources described the activity as “tracking leads” associated with the Guthrie investigation.
The person detained, who was not identified, is the second individual to be questioned in connection with the case and then released.
Sheriff Chris Nanos told ABC News no one is fully cleared until there’s an arrest. A man who identified himself as Carlos was detained and released earlier this week in Rio Rico, Arizona.
It was not immediately clear what led authorities to the home about two miles from where Nancy Guthrie lives but it’s within the radius where investigators have asked residents to check their home security systems for footage from Jan. 1 — a month before her abduction — to Feb. 2, the day after she was taken. Investigators have said they are interested in suspicious persons or vehicles that may have been caught on camera.
-ABC News' Aaron Katersky
The Pima County Sheriff's Department, in a statement posted to social media, said that "law enforcement activity is underway at a residence near E Orange Grove Rd & N First Ave related to the Guthrie case."
Authorities did not release any further details but said that because this is a joint investigation, at the request of the FBI, no other information is currently available.
The Pima County Sheriff’s Department blocked a residential street and conducted investigative activity that the department said related to the search for Nancy Guthrie.
Investigators worked in the rain while keeping the public at a distance.
A department spokeswoman declined to elaborate on the nature of the activity other than to say it was related to the Guthrie case.
A number of vehicles, marked and otherwise, converged on the neighborhood 2 two miles from Guthrie’s home.
-ABC News' Aaron Katersky
Investigators are working to identify DNA found at Nancy Guthrie's property, the Pima County Sheriff's Department said in an update on Friday.
"DNA other than Nancy Guthrie's and those in close contact to her has been collected from the property," the sheriff's department said. "Investigators are working to identify who it belongs to. We are not disclosing where that DNA was located."
Several gloves were found amid the investigation, with the closest located approximately 2 miles from Nancy Guthrie's home, the Pima County Sheriff's Department also said.
"Reports that a glove was found inside the residence or on the property are inaccurate," the sheriff's department noted.
Pima County Sheriff Chris Nanos said Monday that members of the Guthrie family are “cleared” as suspects in Nancy Guthrie’s disappearance.
“To be clear … the Guthrie family -- to include all siblings and spouses -- has been cleared as possible suspects in this case,” the sheriff said in a statement. “The family has been nothing but cooperative and gracious and are victims in this case.”
“The Guthrie family are victims plain and simple,” the statement said.
ABC News previously reported that, according to law enforcement sources, investigators were leaning away from the Guthries as suspects.
-ABC News’ Aaron Katersky
