UPDATE 7:40pm: Police have confirmed that an 80-year-old woman has died in a crash near Kerrytown, Timaru, this afternoon.
Police were called to the crash between a car and a van near the intersection of State Highway 1 and Arowhenua Station Road at around 2:30pm.
The Serious Crash Unit continues to investigate and diversions remain in place for now.
One person has been left in a critical condition following a crash near Timaru this afternoon.
Police and other emergency services are still in attendance near the intersection of State Highway 1 and Arowhenua Station Road, close to Kerrytown.
The incident, which involved a collision between a car and a van, happened at around 2.30pm.
A police spokesperson says: "Traffic has been diverted from the scene, so motorists are asked to drive carefully and follow the diversions.
"The Police Serious Crash Unit are investigating, and we thank motorists for their patience at this time."