State Highway 16 re-opens after crash

The highway has been closed as 60 litres of diesel spilled on to the motorway. Photo / Brett Phibbs

All lanes on State Highway 16 north of Kumeu have re-opened and congestion is now easing.

Both lanes were closed for several hours after two trucks collided just before 8am this morning.

Two people were critically injured and a third was seriously injured in the crash that closed the motorway.

Sixty litres of diesel was spilled onto the road and contractors and emergency services have now cleaned the site.