Sheriff’s detectives are investigating the death of a one-month old baby who died Tuesday morning. Deputies were called to the 6500 block of Oleander Street on the Marine Corps Air-Ground Combat Center about 7:30 a.m. Tuesday morning for a baby who was not breathing. The infant was taken to the Naval Hospital where she died. An autopsy will determine if there were any pre-existing medical problems and the cause of death. Anyone with information should call the Sheriff’s Department at 760-366-4175.