POLICE are appealing for witnesses after a fatal crash on the A1. 21-year-old Drew Graham was taken to Addenbrookes Hospital with life-threatening injuries after the BMW 318Ti he was driving left the northbound carriageway just before 8am on Saturday (July 23). The car crashed into trees at the side of the road at Southoe, close to the junction with Bell Lane. Mr Graham died of his injuries yesterday. The northbound carriageway was closed until 1pm while investigations were carried out on Saturday. PC Jay Porter, investigating, said: I would appeal to anyone who saw what happened or the vehicle prior to the collision to contact police. Anyone with any information should call PC Porter on 0345 456 456 4.