It happened around 1:45 a.m. Friday, July 24 in Lake Grove.
Brian Ferretti, 20, of Sayville, was driving a 2005 Toyota sedan on Middle Country Road at the intersection of New Moriches Road, when his vehicle collided with a male bicyclist, Suffolk County Police said.
The Toyota was traveling southbound from New Moriches Road.
The bicyclist, who has not yet been identified by police, was pronounced dead at the scene by a physician assistant from the Office of the Suffolk County Medical Examiner, according to police. Ferretti was not injured, police said.
The vehicle was impounded for a safety check.
Anyone with information on the crash is asked to call the Fourth Squad at 631-854-8452.
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