A man has been critically injured after being stabbed in Riccarton last night.

The incident occurred at around 5:40pm at the intersection of Clarence Street and Blenheim Road outside a carwash business.

Detective Sergeant James Haigh said two cars were at the red lights on Clarence Street, when a man got out of one of the vehicles and attacked the victim who was in the other car.

The offender then fled north on Clarence Street towards Riccarton Road.

The victim was in a red vehicle.

Police have an investigation underway and are working to establish the circumstances surrounding the incident.

Police are appealing for anyone who was in the area and may have witnessed this incident or has footage of it.

If you have any information that could help our enquiries, please update us online now  or call 105.

Please use the reference number 240919/8018.

Information can also be provided anonymously via Crime Stoppers on 0800 555 111.