A motorcyclist has died after crashing into a truck in Central Otago.

The collision happened just after 5.30 at the intersection of Springvale Road and State Highway 85.

Police say the motorcyclist died at the scene.

The truck driver is shaken but uninjured and is being helped by Victim Support.

Police said the Serious Crash Unit is investigating.

Motorists are advised to avoid the area and expect delays.