Police are investigating the scene of a fatal crash involving three cars on State Highway 1 at Towai in the Far North.
One female has died at the scene and two other people are being treated for moderate injuries.
The road will remain closed for some time.
Unfortunately, the original diversion in place has become blocked, after a truck became stuck on the diverted roads, which were only suitable for light vehicles.
As a result, traffic is now being diverted through Towai Rd, Callaghan Rd and Maromaku Rd.
Motorists travelling through the area will need to exercise patience and factor in the longer travel time through the diversions.
Meanwhile, one person has died, following a serious crash on Waimate Highway (SH 1), Morven, involving three vehicles.
Four people were also injured - two moderately and two seriously.
One of the seriously injured occupants was airlifted to Dunedin Hospital and the other three were transported to Timaru Hospital.
State Highway 1 was expected to be closed for several hours, while the Serious Crash Unit investigates.
Diversions remain in place at the intersections of Barnetts Road and Hornsnells Road with SH1.