The victim was found on Park Avenue just before 5:30 a.m. and rushed to Good Samaritan Hospital in West Islip.
Police attempted to pull over a Jeep possibly involved that was last seen westbound on the Southern State Parkway.
The condition of the injured person is not yet known. No arrests were made.
A person also walked into St. Joseph's Hospital in Bethpage, and police are checking to see if that is connected to this crime.
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