Police are appealing for witnesses after a road traffic collision on the eastbound carriageway of the M4 motorway.
Officers were called shortly before 12:10hrs on Sunday, 11 September to reports of two cars in collision between junctions four and three.
London Ambulance Service attended and the driver of one of the cars – a man aged in his 20s – was taken to an east London hospital for treatment. His injuries are not life threatening.
The driver of the other car involved did not require hospital treatment.
Officers from the Serious Collision Investigation Unit are appealing for anyone who witnessed the collision, or the events leading up to the collision, to contact them on 020 8543 5157.
Enquiries into the circumstances continue.
There have been no arrests.