One person was critically injured in a crash that blocked State Highway 1 in North Canterbury this morning.
The single-vehicle crash at Domett was reported about 10am between Darrochs and Ethelton Rds, south of Cheviot.
A police spokesperson said one person has critical injuries and was flown to hospital.
The serious crash unit was notified and diversions were in place until SH1 reopened this afternoon.
