John Johnson was crossing Montauk Highway at South 13th Street in Lindenhurst with his mother when he was struck by a 2008 Toyota Scion that was traveling west on Montauk Highway at about 8:30 p.m., police said.
Johnson was airlifted to Stony Brook University Hospital where he was listed in critical condition with a head injury, police said.
The driver of the Scion, Cory Pettit, 21, of Lindenhurst, and his female passenger were not injured in the crash. The Toyota was impounded for a safety check.
No criminality was involved in the crash, police said.
Detectives are asking anyone who may have witnessed this crash to call the First Squad at 631-854-8152.
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