A woman from the Redruth area suffered serious injuries in a collision on the A30 over the weekend.
Police are now appealing for witness to the incident that happened on Saturday between Avers and Tolvaddon.
Police were called at around 3pm to reports of a collision between a van and a pedestrian on the westbound carriageway.
The pedestrian who is a woman in her 40s from the Redruth area was initially taken to Treliske Hospital and has since been transferred to Derriford Hospital for treatment. Her injuries are described as serious.
Police are appealing for witnesses and would like to hear from anyone who witnessed the collision.
Anyone with any information or who has dashcam footage that can assist with the investigation is asked to contact the police on 101 quoting Case Ref 50230129183.
Information can also be reported via the force website.
Police thanked the public for their support and patience whilst officers had the road closed.