Suffolk Police arrested an 18-year-old Sayville man after he allegedly stabbed another teenager during an altercation at Smith Point Beach on Saturday evening.
Police said Alexander Murphy, of 30 Lincoln Avenue, was involved in a fight on the outer beach when he stabbed a 17-year-old Selden boy in the back with a knife at about 6:07 p.m. on August 16.
The crowd gathered for the county’s Oyster Jamboree had largely dissipated prior to the incident, which took place down the beach from the Smith Point pavilion.
The victim, whose name was withheld because of his age, was taken to a local hospital with serious but non-life-threatening injuries, according to authorities.
Murphy was also transported to a hospital for treatment of minor injuries. He was charged with second-degree assault and fourth-degree criminal possession of a weapon. Police said Murphy will be arraigned in First District Court in Central Islip once he is released from the hospital.
Detectives from the Seventh Squad are investigating the incident. Anyone with information is urged to call investigators at 631-852-8752.