A large-scale search is underway in southern Arizona as authorities continue efforts to locate Nancy Guthrie, an 84-year-old woman who disappeared from her home near Tucson under circumstances police say are deeply concerning.

Guthrie was last seen on the evening of January 31 at approximately 9:30 p.m. at her residence located outside Tucson near the area of Skyline Drive and Campbell Avenue. She was officially reported missing the following day, February 1, after family and others were unable to reach her.

When officers arrived at the home to conduct a welfare check, they encountered what authorities described as a scene that caused “grave concern.” While law enforcement has not released specific details about what was found inside the residence, officials made clear that the conditions raised immediate alarms and prompted an intensified response.

The Pima County Sheriff’s Office is leading the search effort, which has expanded over the days since Guthrie was reported missing. Deputies, investigators, and search teams are focusing on the area surrounding her home as well as reviewing any information that could help establish what happened during the hours after she was last seen.

Authorities have emphasized that Guthrie’s disappearance is being treated with urgency due to her age and the circumstances discovered at the scene. Missing person cases involving elderly individuals are often considered especially time-sensitive, as health, mobility, and safety concerns can escalate quickly.

Officials have not stated whether there were signs of forced entry or a struggle, but the description of “grave concern” suggests investigators believe Guthrie may not have left her home voluntarily. Detectives are working to reconstruct a timeline beginning with her last confirmed sighting on January 31.

The area near Skyline Drive and Campbell Avenue, where Guthrie lives, includes residential neighborhoods and nearby roadways. Law enforcement has been canvassing the vicinity, speaking with neighbors, and asking residents to remain alert for anything unusual.

Police are also reviewing any available surveillance footage from homes and nearby properties that may have captured activity during the late evening or overnight hours. Authorities say even small details could prove crucial in understanding what occurred.

Family members have not released extensive public statements, but officials acknowledge the emotional strain placed on loved ones as the search continues without clear answers. Community members have expressed concern and support as the case unfolds.

Search operations can involve multiple components, including ground searches, interviews, and evidence review. Investigators are carefully balancing the need to gather information quickly with the importance of preserving any potential evidence related to the disappearance.

Law enforcement has not identified any suspects or persons of interest at this time. They have also not confirmed whether the case is being treated as a potential crime, stating only that the circumstances warrant serious concern and continued investigation.

Authorities continue to urge anyone who may have seen Guthrie on the night of January 31 or noticed unusual activity in the area to come forward. Tips from the public, officials say, can often provide breakthroughs in cases where initial information is limited.

As the search expands, deputies and investigators remain focused on locating Guthrie and determining what led to her disappearance. The case has drawn significant attention due to the unsettling description of the scene discovered at her home and the unanswered questions surrounding her last known movements.

For now, the disappearance of Nancy Guthrie remains unresolved. Authorities say every lead is being pursued as they work to find her and bring clarity to a situation that has left both investigators and the community deeply concerned.