Police are investigating the cause of a crash which killed a Wairoa man overnight on Friday.

Emergency services were called to the single vehicle crash on Mangapapa Bridge on State Highway 38 near Frasertown in the Hawke’s Bay.

The sole occupant, a 23-year-old man, was discovered dead at the scene.

“Indications are that the vehicle may have struck a bridge abutment before coming to rest on the other side of the bridge.”

The Serious Crash Unit is investigating.