GWINNETT COUNTY, Ga. -- A Buford teenager was killed and two others were injured in a single-vehicle crash Sunday night.

Gwinnett County police said the 18-year-old driver was driving a 1989 Volvo north on South Bogan Road just before 9 p.m. when he lost control of the vehicle while negotiating a curve.

The car left the roadway, struck a drainage culvert and overturned several times.

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SLIDESHOW: Gwinnett Teen Crash Scene
Teen Killed, 2 Injured In Gwinnett Crash

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Gwinnett police officials said the driver and rear seat passenger, who were not wearing seat belts, were ejected. The front seat passenger, who was also unrestrained, remained in the vehicle.

The driver was pronounced dead at the scene. He was identified as Triston Sadler, 18, of Buford.

Both passengers, Vernon Thomas, 17, and Ashtyn Roper, 17, received non-life threatening injuries and were transported to Gwinnett Medical Center.

Police said they continue to investigate.