Investigators hunting for leads in the search for Nancy Guthrie have asked people living in her neighborhood whether they noticed any disruptions to their internet connections on the night of her disappearance.
Both the Pima County Sheriff's Department and the FBI were out canvassing in Guthrie's neighborhood in the Catalina Foothills in Tucson, Arizona, on Thursday, going door to door talking to residents and asking if they noticed anything about their connectivity.
Several different homeowners from the neighborhood told NBC News that the agents who came by their homes Thursday specifically asked them if they had noticed any disruptions or issues with their internet service the night that Guthrie went missing.
According to those homeowners, the agents told them that several people who live in the area had mentioned that there were glitches with their internet that night.
Two homeowners said that when the investigators came to their home on Thursday, they additionally asked about any video footage from Jan. 11.
Authorities have not confirmed that they are looking into anything on Jan. 11 and have not said why they're asking homeowners about it.
Three homeowners who spoke to NBC News Thursday all said they were either asleep or not home at the time of Guthrie's abduction, and couldn't say if they had internet issues.
But one couple who lives adjacent Guthrie and who spoke to NBC News on Friday said they did notice a glitch with one of their Ring cameras that night.
The couple said they have four Ring cameras on their property, and that the one that is closest to Guthrie's home said "not available" when they went to look for footage from the overnight hours on the day of the abduction.
Their other cameras, which are farther away from her home, did not have that issue, the couple said. They added that they had never seen the "not available" warning before and said it seems "uncanny" that it happened exactly during that timeframe.
"That's really weird, isn't it?" they said.
NBC News has reached out to Ring for comment.
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The FBI and the sheriff's department have not commented on the reported internet issues or said why investigators are asking this line of questioning.
When asked by NBC News earlier this week whether he believed the suspect may have had a Wi-Fi jammer on him, perhaps sticking out of his pocket, when he showed up at Guthrie's home, Pima County Sheriff Chris Nanos said: "I've not looked at that closely, but yeah, I know that my team has looked at it with the FBI every angle."
Guthriehas now been missing for more than a month, and investigators have yet to publicly identify any suspects or persons of interest in her disappearance.
The 84-year-old mother of "TODAY" co-anchor Savannah Guthrie was last seen around 9:45 p.m. Jan. 31 after having dinner with her other daughter, Annie Guthrie.
She was reported missing Feb. 1 after she didn't show up to a friend's house in Tucson to watch a livestreamed church service, as she did most Sundays.
Authorities have said the case appears to be a kidnapping or abduction, but further details have been hard to come by.
Last month, the FBI released doorbell camera videos and images of an armed and masked man who was wearing gloves outside of Guthrie's home in the early hours of the day she went missing.
The person has been described as a suspect, but investigators have not identified the man.
Officials are looking for a man who is 5 feet, 9 inches to 5 feet, 10 inches tall, with an average build. In the doorbell camera images, he was wearing a black, 25-liter Ozark Trail Hiker Pack backpack.
On Thursday, Savannah Guthrie, who has been on leave from her position at the "TODAY" show and in Arizona with her family,visited the studio in New York Cityand said she plans to return to her post.
"While she plans to return to the show on air, she remains focused right now supporting her family and working to help bring Nancy home," a spokesperson for the show said in a statement.
The Guthrie family announced Feb. 24 that it isoffering a $1 million rewardfor any information that leads to the 84-year-old's recovery. It is in addition to rewards being offered by the FBI and Crime Stoppers.
