Watch: BBC in missing Nancy Guthrie's hometown as sniffer dogs help search for clues

Law enforcement agencies and specialized search teams intensified their efforts near Tucson, Arizona, this week following the reported abduction of 84-year-old Nancy Guthrie from her residence. Local authorities launched a large-scale missing person investigation involving sniffer dogs and forensic specialists after the elderly woman was forcibly taken from her home under circumstances that have left the community on high alert. The mobilization follows an urgent plea from Guthrie’s family, who are desperate for information regarding her whereabouts and the identity of her captors. The search operation has centered on the rural and suburban outskirts of Tucson, where specialized K-9 units are being utilized to track scents and identify potential clues in the arid terrain. BBC reporters on the scene documented the arrival of additional search and rescue assets as investigators cordoned off Guthrie's property to preserve any remaining physical evidence. While the Pima County Sheriff's Department has not yet released a description of potential suspects or vehicles involved, they are treating the disappearance as a high-priority criminal investigation due to the victim's age and the forced nature of her removal. Family members have been active on social media and through local news outlets, begging for the safe return of the grandmother and urging anyone with doorbell camera footage or sightings to come forward. The incident has sent shockwaves through the quiet Arizona neighborhood, where residents expressed disbelief that such a violent crime could occur in their area. As the search enters a critical phase, authorities are focusing on the timeline leading up to the abduction, hoping that digital forensics or witness statements will provide the breakthrough needed to locate Guthrie and ensure her safety.