A man has been taken to hospital with serious head injuries after a collision with a van on the A947.
Emergency services were called to the scene just north of Newmachar at around 4.30am.
The collision involved a white Mercedes Sprinter van and the male van driver was uninjured.
Road policing Sergeant Steve Manson said: “Inquiries into this collision are at an early stage however we would ask that anyone who saw a male walking in the area or who saw the Mercedes Sprinter van contact us on 101 quoting incident 0407 of 20 October.”
The road was closed for most of the morning, and re-opened at around 11am.
Man seriously injured after collision with van on A947