An Aquebogue man was killed in a single-vehicle crash Saturday night in Riverhead, police said.

Ryan Dupuis, 26, was driving shortly before midnight on Sound Avenue near the Northville Turnpike, Riverhead police said, when he left the roadway and struck a tree. Police did not say in which direction he was traveling.

Dupuis, the vehicle's only occupant, was transported to Peconic Bay Medical Center in Riverhead where he died.

The Riverhead Fire Department was also requested to assist at the scene.

The vehicle was impounded for a safety check and police are asking anyone with information on the crash to call Riverhead Town Police at 631-727-4500 ext. 328. All calls will be kept confidential.

Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail. Credit: Anthony Florio; File Footage; Photo Credit: Newsday / James Carbone, John Paraskevas; AP / David Bookstaver, Clark County Sheriff's Office, Richard Drew, Mitchell Tapper, Don Ryan; Peconic River Sportsman’s Club / Kerry Goldberg

'He will be ... coming out of prison in a body bag' Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail.

Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail. Credit: Anthony Florio; File Footage; Photo Credit: Newsday / James Carbone, John Paraskevas; AP / David Bookstaver, Clark County Sheriff's Office, Richard Drew, Mitchell Tapper, Don Ryan; Peconic River Sportsman’s Club / Kerry Goldberg

'He will be ... coming out of prison in a body bag' Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail.

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