Officers responded to a 911 call at 203 Newport St. in the Brownsville section around 5 p.m. on Friday, Oct. 3.
When officers arrived, they found an unconscious and unresponsive 1-year-old boy.
EMS took the child, identified as Anthony Casey, to One Brooklyn Health-Brookdale University Hospital Medical Center where he was pronounced dead.
There's no word yet on how he died.
No arrests have been made, and the investigation is ongoing.
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