An accident involving a vehicle in Cashmere has prompted a large emergency response.

Emergency services were called to Purau Terrace near the intersection with Cashmere Road and Barrington Street.

A vehicle has rolled.

Police have blocked off Purau Terrace.

A police spokesman said they were responding to a single vehicle collision at the roundabout on Barrington Street and Cashmere Road.

A St John Ambulance spokesman said two ambulances and two rapid response vehicles were sent to the scene.

Two patients will be taken to Christchurch Hospital (by road)

One in a serious condition, one in a moderate condition.

Enquiries into the circumstances of the accident are underway.