Pima County Sheriff Chris Nanos has addressed the possibility of a ransom being the motive for the disappearance of Savannah Guthrie's mom, Nancy Guthrie. "No, there's not, we've not heard anything like that," Nanos exclusively told Us Weekly on Monday, February 2, when asked whether there was a possible motive. "I wish somebody would call us and say, 'Hey,' because that's what the family wants. They just want her back. 'Hey, no questions asked, call us where to come and get her, and we'll do that." Nanos added that they would "never rule out" any possibilities, but "there's nothing to indicate" a demand for ransom money at this time. Nancy, 84, was reported missing in Arizona on Sunday, February 1, after she was last seen on Saturday, January 31. Suspicions about her whereabouts began when she didn't show up at church on Sunday. A friend of Nancy's then called one of her children to express concern. (Nancy shared Savannah, 54, Camron Guthrie and Annie Guthrie with late husband Charles Guthrie.) Savannah Guthrie's Mom Nancy's Search Mission Is a 'Race Against Time' "We can confirm this is a missing persons case, and the family is working closely with local law enforcement," the Guthrie family said in a statement to NBC News on Monday. Nanos said in a press conference on Monday that there were "some concerns" about what was found at Nancy's home after her disappearance. When asked whether the police suspected foul play, Nanos said they're "not ruling it out." Savannah Guthrie/Instagram Several other details have emerged since Nancy's disappearance, including that she "didn't leave on her own" and that her home is considered a crime scene. "She has no cognitive issues at all. She's very alert [and] of sound mind," Nanos said at the press conference. Rob Kim/Getty Images for Project Healthy Minds Law enforcement sources also told the Los Angeles Times on Tuesday, February 3, that authorities found blood inside Nancy's home, but Nanos later said this was inaccurate. Her personal belongings, including her wallet, cell phone and car, were reportedly still at the residence following her disappearance. "Something unusual at that house occurred that made us go, 'Wow, something's wrong here. Something doesn't fit,'" Nanos told Us on Monday. "We're gonna pull all the stops and go at all angles. We really do hope it's a search-and-rescue mission and we find her and she's safe and sound. But it would be unjust if we didn't look at what's in front of us and go, 'We need to act.'" Reward Offered for Savannah Guthrie's Missing Mom Nancy Guthrie The sheriff added that there were "things" about the scene at Nancy's home that made authorities believe, "This lady's in danger." "It does have to do with what was described to us about the scene," Nanos continued. "I've been doing this for 50 years. When something doesn't sit well, it doesn't sit well." Savannah was absent from Today on Monday amid her mother's disappearance, but the NBC personality's colleagues, Craig Melvin and Sheinelle Jones, shared a message on her behalf. "On behalf of our family, I want to thank everyone for the thoughts, prayers and messages of support. Right now, our focus remains on the safe return of our dear mom," the statement read. "We thank law enforcement for their hard work on this case and encourage anyone with information to contact the Pima County Sheriff's Department at 520-351-4900."