One person is believed to be critically injured in a multiple vehicle crash on Auckland's Northern Motorway near Dairy Flat.
The crash involved six cars and one truck and has caused major traffic delays.
It happened on the southbound lane between the Silverdale off-ramp and the Oteha Valley Road off-ramp about 6.02am.
Police say one person has been described as being in a critical condition and has been taken to hospital.
NZTA says the crash has been cleared and all lanes are fully open but significant congestion remains.
UPDATE 7AM— NZTA Akld & Nthlnd (@NZTAAkl) June 13, 2018
The crash has been cleared and all lanes are fully open however significant congestion remains. Please be patient in the area or consider using alternative routes.^MF https://t.co/6ZYk397l81
Motorists are being warned to be patient or consider using alternative routes.