"The car was on its roof and three people were trapped."
Emergency crews were called to a serious car crash on Great South Road, Manukau, in the early hours of this morning. Image / Google
Fire crews used rescue equipment to release those trapped. He said at least two people were seriously injured.
Police said just after 6am that the road was blocked off as a result and motorists are being told to avoid the area. The Serious Crash Unit has also been advised.
All lanes were re-opened by 7.30am, the NZ Transport Agency said.
Images of the scene show debris littered over the road and kerb not far from the Westfield shopping centre. The front of the car is completely smashed in and up against a tree.
Several ambulance vehicles and authorities could be seen blocking the road as they worked at the scene.
St John said four people were injured - two seriously. Two suffered serious injuries and the others were said to be in a moderate condition when taken to hospital.
09/08/19 03:32: Traffic incident in Mount Roskill. 1 patient treated, 1 patient transported to Auckland Hospital. https://t.co/glaROglLGm
It is understood one of the victims is a teenager and has been taken to Starship Children's Hospital for treatment. The others have been taken to Middlemore Hospital.
Meanwhile, a person was seriously injured in another car crash in Mt Roskill about the same time.
St John said the victim was taken to Auckland City Hospital for treatment.
