One person is "critically injured" after a crash involving a car and a tractor near Baypark stadium, police say.
A police spokeswoman said the crash occurred on SH29A between the Maungatapu Rd on-ramp and Truman Rd.
Police were alerted to the incident about 4.10pm.
The westbound lane was blocked until about 6.30pm, according to Waka Kotahi NZ Transport Agency updates.
A police media statement said one person had been transported to hospital in a critical condition and traffic management was being put in place while emergency services responded to the scene.