Police are investigating a collision between a car and a motorbike which happened on the Eastbourne Road at Willingdon on Thursday evening (11 November).
Emergency services were called to the collision at about 7.35pm. A 20-year-old man who was riding his motorbike, was taken to the Royal Sussex County Hospital, Brighton, with serious injuries.
The woman driver of the Kia car involved and her passenger were uninjured.
Anyone who witnessed the collision is asked to email email@example.com quoting serial 1324 of 11/11.