A man has been critically injured in a crash between his car and a milk tanker near the Manawatu town of Sanson.
Police said the man in his mid-40s crossed the centre line before his BMW collided with the tanker about 3km south of Sanson at about 8:40am.
The man was taken to Palmerston North Hospital with status one - or critical - injuries.
The force of the collision left the milk tanker on its side in a drainage ditch adjacent to State Highway 3.
Its driver was shaken but unharmed.