One person is in a critical condition and two others are trapped in vehicle following a two car crash on Karaka Road (State Highway 22) around 1.15pm.
Road closures are in place on SH22 and motorists are advised to expect delays and avoid the area if possible.
Karaka Road is now closed between Blackbridge Road and the Glenbrook roundabout, with diversions in place north of the crash at the Karaka Road and Great South Road junction also.
The Serious Crash Unit has been advised and will attend the scene.
Police advise motorists to expect delays in the area this afternoon.
ENDS.
Nicole Bremner/NZ Police