A 50-year-old bicyclist was struck and killed by a sport utility vehicle Friday night in Southampton Town, police said.

Robert L. Nelson of Flanders was struck when his bicycle apparently crossed into a traffic lane at Flanders Road near Cypress Avenue about 7:45 p.m., Southampton Town police said.

A Northampton Volunteer Ambulance took Nelson to Peconic Bay Medical Center, in Riverhead, where he was pronounced dead, police said.

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Nelson was hit by a northbound 1998 Grand Cherokee that remained at the scene, police said. There were no charges brought Friday night by the Southampton Town Police, which are conducting the investigation.

The town's detective division asked that anyone with information about the collision call 631-702-2230, Southampton Town police at 631-728-3400 or the CRIME TIPS Hotline at 631-728-3454.