A woman remains in hospital with life changing injuries following a three-car pile up at a roundabout. 

Police and paramedics were called at about 2.10am on July 10 to reports of a crash involving an MG, Vauxhall Corsa and Audi A6 at the roundabout by the junction of the A404 Harrow Road and Bridgewater Road in Sudbury.

All three cars were found in the middle of the roundabout but the people in the grey Audi had fled, Scotland Yard said.

Three people were treated by the London Ambulance Service.

Police subsequently attended a north London hospital where a woman – believed to be a passenger in the Audi – was receiving treatment.

She remains in hospital with life-changing injuries.

Detectives from the Roads and Transport Policing Command are leading the investigation.

They would like to speak with anyone who witnessed the collision or captured it on dash cam.

There have been no arrests. Enquiries continue.

Anyone with information is asked to call the Serious Collision Investigation Unit on 020 8246 9820 or via 101 quoting reference CAD 588/10Jul.