It happened around 8:15 p.m. Saturday, March 18 in New Cassel.
According to Nassau County Police, the man, age 25, operating a 2011 Honda SUV eastbound on Union Avenue, attempted a left turn onto northbound Grand Boulevard when he was in a collision with a Yamaha dirt bike.
The male operator, also age 25, sustained head trauma and was transported to a local area hospital for treatment of his injuries.
No other injuries were reported and both vehicles were towed from the scene.
The investigation is ongoing.
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