The road was vlosed until 7.30pm and traffic diversions were in place at Maniatutu Rd, Old Coach Rd and Wilson Rd South, she said.
A photographer at the scene said the crash scene was "pretty chaotic". There were at least four fire trucks, six police vehicles and four ambulances in attendance.
A white van was extensively smashed and there was "lots of debris" across the road.
On Wilson Rd North a black SUV was upside down and blocking the road, he said.
Another vehicle, which appeared to be a station wagon, was lying in a paddock.
"It was quite a massive crash and there were lots of people coming and going from the scene crying," the photographer said.