Police have named a 19-year-old man killed in a car crash in Orakei this morning where the driver fled.

The fatal crash happened about 2.30am on Ngapipi Rd.

David Sionepulu, of Panmure, was the front seat passenger in the car. The driver of the vehicle was seen leaving the crash site and is still to be identified and located by police.

Inspector Willie Taylor said it appeared the car had come to rest in the driveway of a house after becoming airborne, hitting trees and a fence.  

The dead man was impaled on a fence.

A taxi driver and his passengers, who witnessed the crash, saw the driver of the crashed car "run off down the road", Taylor said.

Ngapipi Rd was closed between Orakei Rd and Tamaki Dr overnight but has now re-opened.

Two middle aged men, one from Glen Innes, were critically injured in a separate accident about 11.40pm last night, when the car they were travelling in crashed into trees at Okahu Bay.

Auckland City road policing manager Inspector Gavin Macdonald said it was likely speed and alcohol played a part in both crashes.

"It's frustrating for police and the public that some drivers continue to ignore the proliferation of messages and warnings about the dangers of driving too quickly and/or drinking and driving. As long as people continue to do this, families will be torn apart by road fatalities and long term injuries."

Anyone with information about who the driver in the Orakei crash was can contact Detective Sergeant Kathy Bostock on 09 524 1920.

- © Fairfax NZ News