The incident happened at about 1:15 a.m. Thursday, Nov. 21, on Hempstead Turnpike near the intersection of Uniondale Avenue in Uniondale.
A 25-year-old man driving a 1995 Lexus westbound on the turnpike hit the woman as she was crossing the road, according to Nassau County Police said.
The driver remained at the scene, and the victim was taken to a nearby hospital by a Nassau County Police ambulance.
She was pronounced dead shortly after arrival.
Her identity has not yet been released.
The investigation is ongoing.
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