“Two patients, in serious condition, have been airlifted to Christchurch Hospital. One additional patient, in minor condition, has been transported by road to Christchurch Hospital,” St John said.
Police said the Serious Crash Unit was advised and the road remained closed.
NZ Transport Agency Waka Kotahi (NZTA) said drivers should expect delays and consider avoiding travel through the area.
“SCU [Serious Crash Unit] will be attending the scene and their investigations can take several hours. Consider an alternative route.”
– RNZ