UPDATE: Man charged with attempted murder of police officer and more people arrested in 'hit-and-run' incident.

Two people from High Wycombe have been arrested in connection with a "hit-and-run" that left a police officer with head injuries. 

A 20-year-old man from High Wycombe was arrested in the early hours of Thursday morning on suspicion of attempted murder and a 27-year-old woman from High Wycombe was also arrested in the early hours on suspicion of assisting an offender.

The arrests comes after a red Vauxhall Astra crashed into a police officer in Market Square, Aylesbury, at around 3.20pm on Tuesday. 

The car did not stop after the crash, with left the on-duty police officer with head injuries. 

He was taken to hospital but has since been discharged. 

The pair who were arrested remain in police custody. 

Thames Valley Police is appealing for anyone who may have information to help their investigation - or those with mobile phone or dashcam footage of the crash - to call 101 and quote reference number 747 (13/2).