Police are appealing for witnesses to a two-vehicle collision in Worthing.
Officers attended Newland Road around 7.20pm on Wednesday (August 24) after a black Kia Rio collided with a parked vehicle and rolled onto its side.
The driver left the scene before emergency services arrived, but is thought to have suffered a serious injury in the collision. As a result, police are keen to locate him to ensure his welfare.
He is described as white, of slim build and with dark hair. He was wearing a grey top at the time of the collision.
Anyone who witnessed the collision, has any information about the driver, or captured any relevant CCTV, doorbell or dash cam footage, is asked to email collision.appeal@sussex.police.uk quoting serial 1477 of 24/08.