A 24-year-old Crozet man died in a single-vehicle crash on Sycamore Road, east of Warminster Road, in Buckingham County on Saturday.

John W. Clarke Jr. died at the scene, said Virginia State Police spokeswoman Corinne Geller. He was wearing a seat belt.

“An adult male passenger is being treated at UVA Medical Center in Charlottesville for life-threatening injuries,” Geller said.

Police say a 2002 Subaru Outback was traveling on Sycamore Road when it ran off the right side of the road and struck a tree.

While the crash occurred at 2 a.m., it was not reported to police until 11:45 a.m. Saturday, Geller said.

The crash remains under investigation.