A motorcyclist who was killed in a crash south of Oxford on Saturday is believed to be a 22-year-old man from Berkshire.

The man was killed after an accident on the A4074 northbound, near the Dorchester-on-Thames turn, at about 2.20pm.

Police said four vehicles, including a Peugeot, BMW, Mercedes and the motorbike, were involved in the accident.

It is believed the motorcyclist - being named as Mark on Internet forums - was heading south after visiting Fox's Diner, a well-known meeting point for riders.

The collision happened on the northbound carriageway and one witness said she believed the bike had hit a central traffic island and was thrown into the oncoming traffic.

The road between Berinsfield and Shillingford was closed for about three hours for police investigations.

A bunch of lillies marked the accident spot today with a card which read: "RIP. Keep riding in heaven... From all at Fox's Diner."

A tribute posted on the Oxford Mail website read: "Mark was my mate, a brilliant guy, razor-sharp wit and a sharp intellect."

Anyone with information can contact Pc Kevin Crick at Abingdon roads policing on 08458 505505.