Police are pleading with frustrated motorists to be patient as long lines of traffic clog a Northland highway four hours after a serious crash.
The road has reopened after an two cars and a logging truck collided this morning but 10km queues remain in both directions.
A motorist is fighting for life after a vehicle overtaking a logging truck spun out in treacherous conditions and hit an oncoming vehicle.
The crash, which was first thought to be two separate smashes, happened about 7.45am at Mata on SH1, 20km south of Whangarei.
Police say the driver of an SUV travelling south spun out while overtaking and hit a northbound BMW sedan. The SUV then spun into the path of a logging truck and was shunted 150m before stopping.