Two people have been injured in two separate crashes within about 300m of each other on the southwestern motorway.
A person has been rushed to Middlemore Hospital in a critical condition, a St John ambulance spokeswoman said.
Another, from the other crash, has been moderately injured.
Northern fire service spokeswoman Megan Ruru said crews were called to the scene of a three car crash, at the northbound section of the motorway between Puhinui and Massey Rds, about 11.15pm.
About 300m away another car had rolled and a person was thrown from the vehicle, Ruru said.
