Police used Code Red, the automated alert system, Sunday evening in an effort to find a 66-year-old woman who has dementia and was last seen in Conimicut.

Major Christine Kelley said yesterday that calls went out to residences within a mile and a half radius of Rock Avenue, where the woman lives, at 5:55 p.m. The calls gave a description of the woman, what she was wearing, where she was last seen and that she was walking a black dog. It urged people with any information to call police.

At one point as many as eight officers were looking for the woman and at least one area resident, Roger Keefe, voluntarily drove the neighborhood.

Kelley said police first received a call about 3:15 about a woman knocking on neighborhood doors looking for help. A second call came shortly after from the woman’s son, who described her dementia and said she was missing.

While hundreds of area homes were provided the missing woman report, Kelley said it was a caller from close to East Greenwich who led police to the woman at about 7 p.m. The caller reported a woman who appeared to be disoriented.

Police found the woman near 4451 Post Road. Kelley said there was no report of injury, but as a precaution she was taken to Kent Hospital. Until a full report is completed, Kelley couldn’t say what became of the dog.