Police are appealing for further witnesses and information after a collision on Eastbourne seafront.
The incident in Royal Parade at the junction with Channel View Road at about 7pm on February 12.
It involved the drivers of a blue Vauxhall Corsa, a grey Volkswagen Polo, and a grey Vauxhall Insignia, and the rider of a Royal Enfield Interceptor motorcycle.
The motorcycle rider, a 21-year-old local man, sustained serious injuries and was taken to hospital. He has since been discharged.
Officers are investigating the circumstances, and have asked for any further witnesses or anyone with information such as CCTV, dashcam, doorbell or mobile phone footage to come forward.
Information can be reported to Sussex Police online, quoting serial 1109 of 12/02.
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