A 64-year-old man is currently in hospital with life-threatening injuries after falling off his bike.

At around 3.45pm on Sunday, March 1, the cyclist crashed into a grass verge on Hedgerley Hill near to the junction with Kiln Lane.

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The cyclist was taken to the John Radcliffe Hospital in Oxford where he currently remains.

Investigating officer, PC Matthew Diduca, of the Joint Operations Roads Policing Unit in Amersham, said: “We are keen to speak to anyone who saw the collision itself or the moments before it happened.

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“Anyone with dash-cam footage of the incident or the moments before is also asked to please come forward.

“A man has been seriously injured in this incident and although we are in the early stages of the investigation, we need anyone who saw what happened to come forward."

Anyone with any details which could assist the investigation can contact Thames Valley Police on 101 quoting the reference 43200070901, or you can make a report online.

If you would prefer to remain anonymous, please contact Crimestoppers anonymously on 0800 555 111.