Police have released the latest details.
Inspector Jeff Penno spoke to media.
The damaged cars remained on the road an hour after the crash.
The Serious Crash Unit is investigating.
One person died in one crash while seven were rushed to hospital in another.
Emergency services are responding to the crash on Boundary Rd in Clover Park.
The dog has been moved to the Manukau Animal Shelter.
Here's what we know.
