A cyclist who was critically injured after being a hit by a car in Darfield has died.
The crash happened on State Highway 73, near Creyke Rd in Darfield, at 3.15pm on Wednesday.
A helicopter, two ambulances and a rapid response vehicle were sent to the scene.
One person was flown to Christchurch Hospital in a critical condition, St John said.
A second person suffered minor injuries in the crash and was treated at the roadside.
The highway was closed until shortly before 8pm on Wednesday.
The police serious crash unit has been notified.