A cyclist was left with serious head injuries in a hit-and-run on Friday afternoon.

The female cyclist, who is in her sixties, is still in hospital in a serious condition after she was hit by an unknown vehicle on the Halton Airfield Road, between Western Turville and RAF Halton.

The driver of the vehicle did not stop at the scene of the crash, which happened on January 17 at around 4.40pm - but the vehicle will have had some damage to the passenger side wing mirror.

Investigating officer PC Tom Smith of the Roads Policing Unit in Buckinghamshire, said: "I am appealing for any witnesses of this collision to come forward.

"This happened on an unnamed road but other motorists in the area at the time may have seen this incident happen.

"Anyone with dash-cam is also asked to check the footage for anything of note that could help with this investigation.

"If you think you could be the driver, please contact Thames Valley Police."

Call 101 quoting reference 43200019294 if you can help - or call Crimestoppers anonymously on 0800 555 111.