The crash happened just after 10:30 a.m. on Tuesday, Jan. 2 in North Massapequa.
According to Nassau County Police, the boy and his car were found on the northbound ramp on Exit 5 on the Seaford-Oyster Bay Expressway.
The boy was reportedly driving a 2019 BMW that drove off the ramp, hitting a tree in the woods and landing on its side.
Police pronounced the victim dead at the scene.
His identity has not been released.
It was determined that the teen was the only person in the car at the time of the crash.
The investigation is ongoing.
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