An off-duty Cal Fire captain was found fatally stabbed inside her Ramona home Monday evening, and sheriff’s detectives are investigating the homicide as a possible domestic violence case, officials said.

A woman was stabbed to death at a home in Ramona, prompting a homicide investigation early Tuesday, the San Diego County Sheriff’s Department said. Authorities were first called around 9 p.m. to a report of an attack at a remote home on Rancho Villa Road.