A man has been critically injured in a crash between a car and a truck in Christchurch this afternoon.

Emergency services were called to Prestons Rd, Marshland, about 3.30pm.

The crash brought down power lines.

Police said a man had been taken to hospital in a critical condition but there wereno other injuries.

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The road is closed near Hawkins Rd and diversions are in place.

Police have asked motorists to avoid the area.