(CBS) — The deaths of two four-month-old girls are being investigated by the Illinois Department of Children and Family Services.

Both girls were four-months-old and both died this past Saturday. One was from the North Shore, the other from the south suburbs and now DCFS is investigating both deaths.

The mother and father of Aimee Puentes of North Chicago are being investigated for alleged abuse and neglect – in Aimee’s death.

Police are investigating also.

The mother of Amaya Williams of Blue Island is being investigated for allegations of neglect – in Amaya’s death.

In both cases, the medical examiner’s office says autopsy results are inconclusive – pending further studies.

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