Police are appealing for witnesses following a collision involving a motorcycle and several pedestrians in Barcombe, after a firework display on Saturday (Nov 19).
It happened at around 10:20pm in High Street and resulted in the road being closed for some time.
A 67-year-old woman from Ditchling, and a 30-year-old woman from East Grinstead were taken to hospital with serious injuries. Three other people, including two children, suffered minor injuries which did not require hospital treatment.
A 17-year old boy from Barcombe, who was driving the motorcycle, was arrested on suspicion of causing serious injury by dangerous driving. He has since been released on bail whilst enquiries continue.
The police have apologised for any disruption the road closure may have caused.
Any relevant information or footage can be reported to Sussex Police online, or by calling 101, quoting Operation Meadow.