Commuters heading between Wellington and the Hutt Valley face major delays this morning following two accidents on State Highway 2 - one involving a diesel tanker.
The motorway is down to one lane southbound. Both northbound lanes have now reopened after being closed this morning.
Emergency services were called to the first crash, where a car struck a pole near Horokiwi in the southbound lane about 5.13am.
The driver of the car is in a serious condition.
Fire Service central communications shift manager Murray Dunbar said emergency services were called to the second crash, involving a vegetable truck and a diesel tanker, about 5.29am.