Suffolk County police at the scene of a crash in...

Suffolk County police at the scene of a crash in which a pedestrian was fatally hit on Broadhollow Road, south of the Long Island Expressway, in Melville, Tuesday evening. Credit: Stringer News Service

Police are investigating a crash that left a man dead Tuesday evening in Melville.

Suffolk County police have not released the identity of the pedestrian, pending notification of next of kin, but said he was struck in the roadway by a vehicle on southbound Broadhollow Road, Route 110, south of the Long Island Expressway, at about 5:30 p.m. The circumstances of the crash remain unclear.

Second Squad detectives impounded the car for a safety check, police said. The driver remained at the scene, was not injured and has not been charged.

Additional information was not immediately available.

Pfc. Raheen Tyson Heighter, of Bay Shore, was killed in Operation Iraqi Freedom. His mother has made it her mission to aid active-duty service members, veterans, first responders and Gold Star families. NewsdayTV's Virginia Huie reports. Credit: Randee Daddona; Photo credit: Cathy Heighter

'His sacrifice made a difference': Gold Star mother honors son's memory Army Pfc. Raheen Tyson Heighter, 22, of Bay Shore, was the first serviceman from Long Island killed in the Iraq War.

Pfc. Raheen Tyson Heighter, of Bay Shore, was killed in Operation Iraqi Freedom. His mother has made it her mission to aid active-duty service members, veterans, first responders and Gold Star families. NewsdayTV's Virginia Huie reports. Credit: Randee Daddona; Photo credit: Cathy Heighter

'His sacrifice made a difference': Gold Star mother honors son's memory Army Pfc. Raheen Tyson Heighter, 22, of Bay Shore, was the first serviceman from Long Island killed in the Iraq War.

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