Luton road rage victim in hospital with fractured skull
A driver's skull was fractured when he was hit over the head with an object in an apparent road rage attack.
The 54-year-old victim was attacked in a row at traffic lights when he left the M1 near Luton after being cut up.
Police said the victim's Rover 600 and the attacker's lime green Vauxhall Corsa both left the motorway at the northbound junction 11.
They want to speak to the driver of the Corsa, who left the scene after the attack at about 15:30 GMT on Wednesday.
Following the row, at slip road traffic lights, he drove away under the M1 bridge and towards Luton town centre.
The injured man was initially taken to the Luton and Dunstable Hospital for treatment to a cut to his head but when it became clear he had a fractured skull he was transferred to Addenbrooke's Hospital in Cambridge.
PC Olyver Tomlinson said: "The offender is described as a black man, between 30 and 40 years old, with four gold teeth and wore a high visibility jacket and trousers.
"I would urge anyone who knows a man fitting this description who drives a lime green Corsa to contact the police.
"I would also urge other motorists who witnessed this incident to contact the police, in confidence."