Emergency services are responding to a serious crash on State Highway 2, Horokiwi, between Wellington and Petone.
About 4:15am a single vehicle crashed into a power pole and was set alight.
One person has critical injuries, one person serious injuries, and a third person received minor injuries.
The power pole and lines are down and the northbound lane of State Highway 2 is currently closed.
Diversions are in place and the southbound lane remains open.
Motorists are asked to avoid the area or delay travel, if possible.
The Serious Crash Unit will examine the scene and closures may be in place for some hours.
Issued by Police Media Centre