A 23-year-old man was killed early this morning in a single-car wreck at Nuckols Road and Interstate 295 in western Henrico County, police said.

The victim was identified as Paul M. Tonn, of Clear Lake, Wis.

The accident occurred about 3 a.m. when a 1992 Cadillac was exiting from I-295 west onto Nuckols Road north, Henrico Police Lt. Bryan Cook said. The vehicle ran a stop sign at the end of the ramp, struck a guardrail and went down an embankment, he said.

Tonn and one other person were in the Cadillac, but police would not say who was driving. The medical condition of the other occupant was not released.