At around 12:15 a.m. Wednesday, 1, the 45-year-old was found unresponsive in his cell by a correction officer at the Nassau County Correctional Facility located in East Meadow at 100 Carmen Ave.
He was transported to a local area hospital where he was pronounced dead at 1:15 a.m.
The identity of the inmate has not yet been released.
Nassau County Police say the death was "of an undetermined nature."
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