Man sustains serious head injuries in M4 crash
Emergency services were called shortly after 7am this morning to the entrance of the eastbound sliproad of the A33 towards Reading when a Renault left the road.
The man was trapped in the vehicle and after being freed by fire crews, he was transferred to Royal Berkshire Hospital by land ambulance.
He was later taken by air ambulance to the John Radliffe Hospital in Oxford, where he is currently being treated for his injuries.
A spokesperson for Thames Valley Police, Hannah Williams, said they expected the road would be closed until approximately 10.30am while officers carry out investigations.
A spokesperson for South Central Ambulance Service, James Keating-Wilkes, confirmed that two people were in the car.
The other person in the vehicle was out of the car by the time emergency services arrived and is not believed to be hurt..
The Royal Berkshire Fire and Rescue Service received a call from police at 7.15am and crews from Dee Road, Caversham Road and Whitley Wood all attended.
Anyone who witnessed the incident or has any information should contact Thames Valley Police on 101.
More to follow.