A massive search is underway in southern Arizona for Nancy Guthrie, an 84-year-old woman whose disappearance has triggered growing alarm after police entered her Tucson-area home and reported a scene that caused “grave concern.”

Authorities confirmed that Guthrie was last seen on the night of January 31 at approximately 9:30 p.m. at her residence near Skyline Drive and Campbell Avenue, on the outskirts of Tucson. When she could not be reached the following day, she was officially reported missing on February 1.

When officers arrived at the home to conduct a welfare check, they encountered conditions inside the residence that immediately raised serious concerns, according to law enforcement officials. While authorities have not publicly detailed what was found, the description alone prompted an intensified response and the launch of a large-scale search operation.

The Pima County Sheriff’s Office is leading the investigation and coordinating search efforts. Deputies and investigators have been canvassing the surrounding area, reviewing potential surveillance footage, and working to establish a clear timeline of Guthrie’s movements during the hours leading up to her disappearance.

Officials have emphasized that the case is being treated with urgency due to Guthrie’s age and the unexplained circumstances inside the home. Missing-person cases involving elderly individuals are often classified as especially time-sensitive, given the increased risks related to health, mobility, and personal safety.

Law enforcement has not stated whether there were signs of forced entry or a struggle, nor have they confirmed whether a crime is suspected. However, the phrase “grave concern” has underscored that investigators do not believe this is a routine missing-person case.

Residents in the area near Skyline Drive and Campbell Avenue described a noticeable law enforcement presence as the search expanded. Neighbors reported seeing patrol vehicles and officers going door-to-door, asking questions and requesting residents check home security cameras for any unusual activity during the late evening or overnight hours.

Authorities are urging anyone who may have seen Guthrie on the night of January 31, or who noticed anything out of the ordinary near her home, to come forward. Investigators say even seemingly minor details could prove critical in determining what happened.

Search operations have included both ground efforts and investigative work. Officials have not disclosed whether specialized units or additional agencies are involved, but confirmed that multiple resources are being used to locate Guthrie as quickly as possible.

Family members have not made extensive public statements, but law enforcement acknowledged the emotional strain such cases place on loved ones. As time passes without answers, concern continues to grow.

The circumstances surrounding Guthrie’s disappearance have raised broader questions within the community about safety and vulnerability, particularly for older residents living alone. Authorities, however, have cautioned against speculation and stressed that the investigation must be guided by evidence rather than assumptions.

At this stage, no suspects or persons of interest have been named. Law enforcement has also not confirmed whether the case is being treated as a potential abduction or another type of incident. Officials say all possibilities remain under review as they continue to analyze information gathered so far.

Investigators are working to reconstruct Guthrie’s last known hours, including whether she had visitors, plans, or interactions that could shed light on her disappearance. The condition of the home remains a key focus of the investigation, though details have been deliberately withheld.

As the search continues, authorities remain focused on locating Nancy Guthrie and determining exactly what led to her disappearance. The case has drawn significant public attention due to the troubling description of the home scene and the unanswered questions that remain.

For now, the community waits as the massive search effort continues, hoping for answers — and for Guthrie to be found safe.