Overview
- Police say the collision happened around 9.20pm on 13 March on the A355 and involved a white Toyota Yaris, a grey Toyota Hilux and a motorbike across both carriageways.
- The motorbike rider, a 16-year-old boy from Beaconsfield, was arrested on suspicion of causing death by dangerous driving.
- Two teenagers from High Wycombe — a 16-year-old boy and a 15-year-old girl — who were also riding a motorbike nearby were arrested on the same suspicion, and all three remain in custody.
- The victim, a 15-year-old passenger on the motorbike, died at the scene, and her next of kin are being supported by officers.
- Investigators from the Serious Collision Investigation Unit are seeking witnesses and dash-cam footage, with information accepted via 101, the force website or anonymously through Crimestoppers.