Vigilance learnt officers were called shortly before 12:10hrs on Sunday, 11 September to reports of two cars in collision between junctions four and three, Vigilance can report.
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.
Number to contact: 020 8543 5157.