A woman has died after a single car crash in Whangārei early on Friday morning.

Emergency services were called to Whareora Rd at the intersection with Paranui Valley Rd, in Tikipunga about 3:25am, where they found the woman.

Her car had gone through a fence and down a bank, before coming to rest in a creek, a police spokesperson said.

The Serious Crash Unit is making inquiries into the circumstances of the crash, they said.

Motorists are asked to avoid travelling Whareora Rd until 8:30am while the car is removed.