Thames Valley Police is appealing for witnesses following a fatal road traffic collision in Amersham. At approximately 2.40pm on Thursday 12 November, a blue Honda Jazz and a pedestrian were involved in a collision on The Green, Amersham. The pedestrian, an 84-year-old man, sustained serious injuries and was taken to hospital. Sadly, despite the efforts of emergency services and hospital staff, he has since died. The driver remained at the scene and our investigation is ongoing. Detective Constable Joy Jarvis, of the Serious Collision Investigation Unit, said: "Very sadly, a man has died as a result of this collision.  Our thoughts and sympathies are with his family and loved ones at this extremely difficult time. They are being supported by specially trained officers. I am appealing to anybody who witnessed the collision, or who was in the area of The Green, The Drive or surrounding roads at around the time it occurred, to please get in touch. I am particularly keen to hear from anybody who may have dash-cam footage, CCTV, doorbell footage or any other information that could assist our enquiries. If you have any information that may assist the investigation, please contact Thames Valley Police, quoting reference 43260592337. "No arrests have been made." You can upload digital evidence via our dedicated portal for this investigation or contact Thames Valley Police on 101, or make a report online via our website, quoting reference 43260592337.