Police Scotland is appealing for information following a serious road accident on the A90 Peterhead-Aberdeen yesterday evening (Wednesday April 5) near Toll of Birness.
Six people were taken to Aberdeen Royal Infirmary following the two-vehicle incident at around 6pm just south of the junction with the A952.
There were two occupants within the silver-coloured Volkswagen Passat which was travelling northbound on the A90 at the time. A 66-year-old woman who was a front seat passenger has sustained life-threatening injuries, while the 70-year-old male driver sustained serious injuries which are not life threatening.
Four people had been travelling in the white coloured Peugeot 207 which was travelling southbound. The front seat passenger, an 18-year-old female, sustained serious injuries and is in a critical condition in hospital.
The 18-year-old female driver of the Peugeot and the rear seat passengers, two males both aged 18, also sustained serious but not life threatening injuries.
All the casualties are still being treated at Aberdeen Royal Infirmary.
The road re-opened around 3am.
Road Policing Sergeant Peter Henderson said: "Enquiries are ongoing and we have already spoken with a number of witnesses.
"I would appeal to anyone who was in the area at the time and saw either vehicle in the lead-up to this incident, or indeed the collision itself, to please get in touch.
"Likewise if any motorists believe they may have dashcam footage which could assist our enquiries, I would urge you to come forward.
"Anyone with information can contact Police on 101 or Crimestoppers on 0800 555111 in confidence."