A woman is dead after a car and a truck crashed at Dome Valley, near Warkworth north of Auckland, this morning.

Police said the woman died at the scene of the accident on State Highway 1 and traffic was diverted onto State Highway 16.

Inspector Paul Marshall from, the police Northern Communications Centre in Auckland, said it was a "pretty horrific" accident scene.

The truck driver was not hurt.

The road was due to reopen about 1pm today.

No other details were available.

- NZPA