COSTILLA COUNTY, Colo. The Costilla County Sheriffs Office is warning the public about a possible animal attack that may have led to a persons death.In a Facebook post published Saturday, the sheriffs office said that it and other agencies are conducting a death investigation in the Sangre De Cristo Ranches area that may be linked to an attack by an animal that has not yet been identified.The sheriffs office has not said when the death occurred or released the identity of the victim. Authorities are awaiting results from the El Paso County Coroner to determine the actual cause of death.Sangre De Cristo Ranches is an unincorporated community in the north-central area of the county. Authorities are asking residents to be vigilant and aware of their surroundings.The sheriffs office said deputies and agents with the Colorado Bureau of Investigations and Colorado Parks and Wildlife had hiked the area but could not locate anything that could identify the animal.