UPDATE: State Highway 2 has been closed following a serious crash.
Emergency services were called to the scene near Aongatete at about 1.45pm.
A police spokesperson says one vehicle has gone down a bank.
"Initial reports suggest one person has been seriously injured.
"A helicopter is responding.
"The road is closed and diversions will be put in place."
Motorists are advised to expect significant delays and avoid the area if possible.
Reports are coming in of a crash on State Highway 2, near Thompsons Track.
A caller to the 0800 SUNLIVE news hotline says traffic is backing up in the area.
SunLive has contacted police and will provide more information when it is made available.
At the scene?
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