Traffic chaos has already begun in and around Tauranga as roading authorities warn of major delays.
The New Zealand Transport Agency has warned of backed up eastbound traffic building through Katikati and Te Puna this afternoon. The agency asked motorists to avoid State Highway 2 if possible.
However, a five-car crash on State Highway 29 at Tauriko has also prompted police to warn of "extensive delays".
No one has been seriously injured in the crash but motorists were also asked to avoid the area if possible.
The crash happened at 12.45pm near Gargan Rd.