One person was transported to Christchurch Hospitalby helicopter and the other by ambulance.
Lineside Rd was closed to traffic for about three hours and was reopened at 10.15am.
FINAL UPDATE: 10:15 AM The road has REOPENED after an extended closure due to a serious crash. Take care & expect some delays as traffic clears. ^SMhttps://t.co/zjmEHj5cpv
— Waka Kotahi NZTA Canterbury & West Coast (@WakaKotahiCWC) June 17, 2021