One person has died following a crash on Sunday morning in Waitaki.

Police were called to the single-vehicle crash near Happy Valley Creek Bridge on State Highway 85, Dunback-Morrisons Rd, about 8.10am.

The bridge is about halfway between Waihemo and Green Valley.

One person was found dead at the scene.

The road was closed while the Serious Crash Unit conducted a scene examination.

Police advised motorists at the time of the crash to expect delays or take an alternate route.