From Devon & Cornwall Police:
Police were called at around 5.10pm on Saturday 7 January 2023, to a report of a Road Traffic Collision on the westbound section of the A30 between Victoria and Highgate Hill. The collision involved a purple Ford Fiesta hatchback and a blue Renault Trafic van.
As a result of the incident, a 20-year-old woman suffered significant injuries and was conveyed to Derriford Hospital by air ambulance where she remains in a serious condition.
A man in his 30s from Camborne was arrested on suspicion of causing injury by dangerous driving. He has been released on police bail until 5 April.
Officers from the Roads Policing Team, supported by local officers, conducted a thorough investigation of the scene. Road closures in both directions of the A30 were put into place with diversions.
Police would like to thank members of the public for their patience while the road was closed for the duration of the forensic collision investigation.
Police are appealing to hear from anyone who may have witnessed the collision or with dashcam footage to call on 101 quoting the incident log number 583 of 07/01/23.