Authorities say a 15-month-old girl has died after she fell into her grandmother's pool in southern Michigan. reports an ambulance rushed Jordynn Watson from the Summit Township home Wednesday evening to a hospital, where the Jackson County sheriff's department says she was pronounced dead.

Authorities have said the girl was found unresponsive in the above-ground pool.

Investigators say she apparently walked out of the house to the pool as an adult was inside.

Children's Protective Services is expected to be involved in the investigation.

The sheriff's department says charges aren't expected in the case.