Sheets said the caregiver's identity will be released at a later date. He did not know the cause of her death.
The caregiver was taken to Advocate Christ Medical Center after the early morning fire. Chief Sheets, who announced the death at Tuesday night's Oak Lawn Village Board meeting, said he did not know if the woman died at Advocate Christ or had been transferred.
The older woman found dead in the house on Lawrence Court was on a couch in the living room.
Both women died from fire-related injuries. Sheets said there were no working smoke detectors inside the home.
An Oak Lawn firefighter injured his elbow battling the blaze.