Police are in attendance at a crash that occurred at approximately 2.10pm on Collingwood Road, Waiuku.
Two vehicles are involved and one person has received critical injuries and another person is in a serious condition, both have been taken to Middlemore hospital.
Diversions are in place at the intersection of Kitchener and Collingwood and Cornwall and Collingwood Roads.
Traffic is heavy in the area and police recommend avoiding the area if possible.
The Serious Crash Unit is investigating.