Three people have been taken to Christchurch Hospital following a serious crash on Old West Coast Road, Darfield.
It's believed a car hit a power pole around 9:30 this morning.
A St John spokesperson says one person is in critical condition, another in a serious condition and one moderate.
A helicopter was dispatched to the scene, next to the Waimakariri River.
There are currently delays in both directions on Old West Coast Rd between Cooks Rd and Addingtons Rd.