COSTILLA COUNTY, Colo. — A medical examiner believes a woman in Costilla County died following several injuries from an attack involving domestic dogs.

WATCH: Costilla County Sheriff warns residents to be aware of surroundings following possible animal attack

According to the El Paso County Coroner, the woman was 68-year-old Cindy Denholm. The sheriff’s office said she was found dead on Jan. 23.

Colorado Parks and Wildlife (CPW) assisted with the investigation once the death was determined to involve animals.

CPW determined the incident didn’t involved wildlife, and said the evidence points to domestic dogs, which have a history of running loose for years. They also say some of those domestic dogs are feral.

The sheriff’s office said swab samples of the bite wounds were taken, and they are available for further DNA analysis.

Costilla County Sheriff Danny Sanchez released the following statement regarding this incident:

Background Information

The Colorado Bureau of Investigation (CBI), in collaboration with the Costilla County Sheriff’s Office, is investigating a possible animal attack in the Sangre De Cristo Ranches.

Costilla County deputies and CBI officials “hiked the immediate area,” but were unable to find any animal identification.

The sheriff’s office warns residents in the area to remain aware of their surroundings.

Woman believed to have died from injuries after domestic dogs attack