Police officer fighting for life after on-duty traffic incident is named - as four people arrested

A police officer left fighting for his life after being seriously injured in a road traffic incident while on duty has been named.

Thames Valley Police said PC Christopher Miller, 38, remained in a critical, life-threatening condition in hospital following the incident on the B416 in Stoke Poges, Buckinghamshire, at about 10.20pm on Thursday. According to the force, PC Miller has spent five years with the roads policing unit and has been in the police for 13 years, and his family are being supported by specially trained family liaison officers.

Thames Valley Police said a white BMW did not stop following the incident, and police are asking anyone who may have seen a vehicle with significant damage to the front to get in touch. Officers are also continuing to appeal for witnesses or anyone who may have footage.

Two men from Slough, aged 28 and 38, have been arrested on suspicion of attempted murder and causing serious injury by dangerous driving. A 43-year-old man, also from Slough, has been arrested on suspicion of assisting an offender and perverting the course of justice.

He has been released on bail. On Sunday, a 37-year-old woman from Slough was arrested on suspicion of assisting an offender and perverting the course of justice.

Read more from Sky News:Mother and three children who died in house fire in London namedPremier League clubs at risk of legal actionRayner says she 'never' wants to be Labour leader Thames Valley Police Deputy Chief Constable Ben Snuggs said: "Today, I am asking for the public's help to share this witness appeal. "Police officers face danger every day.

In this incident, PC Christopher Miller was simply doing his job, serving the public and keeping our communities safe. "Sadly, Christopher has sustained extremely serious injuries, and we are doing all we can to investigate the exact circumstances.

"All officers should expect to return home safely after each tour of duty, and we wish Christopher a swift and full recovery. "We have all been affected by this, right across Thames Valley Police.

I want to thank our local communities for all their support and the wider public for the supportive messages we have received.".