Four people have been injured in a crash involving a campervan and car in the Mackenzie District.
Police said they were called to the crash on State Highway 8 (Tekapo-Twizel Rd) near Hayman Rd, Lake Pukaki, about 10.15am on Thursday.
The road was closed, a police spokesperson said.
"Motorists should avoid the area until the road has been re-opened."
Hato Hone St John sent two ambulances to the scene and transported four patients, all in moderate condition, to Timaru Hospital.