UPDATE: Diversions are in place off State Highway 2 at Waitakaruru, due to the serious crash around 11am.
Traffic heading towards the Coromandel will need to turn off at Mangatawhiri Road, and head through Miranda Road, while traffic heading towards Auckland on SH 2 will need to turn off at SH 25 and go through Front Miranda Road.
Motorists are asked to delay their travel if possible.
Trucks and heavy vehicles will need to take extra care and time on the detour route.
EARLIER: Emergency services are responding to reports of a serious crash on State Highway 2 near Steen Road at Waitakaruru, in the Waikato District.
Police, Fire and Ambulance were notified at 11:03am.
Police say the exact nature of injuries is not confirmed at this stage.
Diversions will be put in place and motorists are asked to drive with care and delay their travel if possible.