South Wales Police is appealing for witnesses following a fatal road traffic collision on the A4067, Mumbles Road, Swansea, Saturday, August 24.
The collision involving a silver Ford Galaxy and a green Kawasaki motorcycle, happened shortly after 5.20pm.
The motorcyclist, a 50-year-old Swansea man, died at the scene.
His next of kin have been informed and are being supported by a family liaison officer.
The occupants of the Ford were taken to hospital for treatment.
The driver of the Ford, a 29-year-old man from Bradley Stoke, was arrested on suspicion of causing death by dangerous driving and is in police custody.
Officers would like to speak to anyone who witnessed the collision or saw the manner of driving of the vehicles prior to the collision. Anyone with any dash-cam footage is also asked to get in contact by calling 101 quoting reference 1900312713 or calling Crimestoppers anonymously on 0800 555 111.