Twenty-three-month-old Aydeen Cabrera drowned in the pool behind his family's Fenwick Street home in Allentown, according to the Lehigh County Coroner's Office.
The boy was pronounced dead at 7:18 p.m. at Lehigh Valley Hospital-Cedar Crest.
An autopsy determined his cause of death was drowning, and his manner of death was an accident, the coroner's office said.
The incident remains under investigation by the Lehigh County Coroner's Office and the Allentown Police Department.
Click here to follow Daily Voice Allentown and receive free news updates.