A MAN is fighting for his life after four cars collided on the southbound carriageway of the A19, near Osmotherley, in North Yorkshire. The man, in his 30 and believed to be from Birmingham, had suffered serious head injuries and was treated at the scene by a Great North Air Ambulance doctor, before being flown to James Cook University Hospital, in Middlesbrough. Police said no one else was injured. Lengthy tailbacks formed as the road was cleared and investigators worked at the scene.