Officers are investigating a serious collision involving a van and a motorcycle in Chichester.
The incident at the New Road roundabout near Goodwood at about 9.45am on Thursday, February 2.
A motorcycle rider was taken to hospital with a serious but not life-threatening injury.
The van driver was not injured.
Road closures were in place, and police have thanked the public for their patience while this incident was dealt with by the emergency services.
Officers are appealing for witnesses or anyone with relevant CCTV or dashcam footage to report it to Sussex Police online or on 101, or email: firstname.lastname@example.org and quote Op Klaxon.