Lt. Lincoln Hoshino says authorities were alerted that a body was slumped over in the driver's seat of a hearse parked near the Beverly Hills Hotel at about 3 p.m. Monday.
Hoshino says the investigation is in its early stages but the woman appears to have died of natural causes, with no weapons or evidence of violence discovered. Coroner's investigators will make a final determination of the cause of death.
The woman's relatives have not been notified yet and her identity has not been released.
Police could not immediately say to what funeral home or cemetery where the body was being sent.