A three-vehicle collision temporarily blocked State Highway 1 near Hukerenui in Northland on Wednesday.
The crash happened about 12.50pm 500 metres north of Waiotu Block Rd.
One of the vehicles involved was a ute. Traffic had started to build up from both directions and police were organising diversions.
St John ambulance crew were on scene to help with those who were injured.
Officers at the scene had also asked for the serious crash unit to attend.
The road was reopened at about 4.15pm.