It happened around 3:40 a.m. on Sunday, Aug. 16 in Sullivan County.
A preliminary investigation revealed that a 2009 Toyota was traveling in the town of Thompson on Old Glen Wild Road when the the car failed to negotiate a curve and struck a tree, state police said.
The operator and front-seat passenger were transported to Garnet Health Medical Center in Orange County, said police.
The backseat passenger, a 22-year-old man, was pronounced dead at the scene. His identity has not yet been released.
The investigation is ongoing.
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