A 51-year-old woman has been left seriously injured after the vehicle she was travelling in was involved in a crash with a police car in East Lothian.
The marked police car had its blue lights and siren activated when it collided with a blue Ford Ka on Saturday night.
A 19-year-old woman and 60-year-old man were also injured in the incident that took place on the A1 near the Linkshead junction at around 11.30pm.
All three were taken to hospital and medical staff say the 51-year-old, who was a passenger in the Ford, has suffered serious injuries.
The teenager, who was driving the vehicle, and the man, who was also a passenger, were both treated for minor injuries.
The two officers from the police car were checked over by paramedics at the scene.
The road was closed for around seven hours to allow for an investigation at the scene.
Police are now appealing for information to the crash and witnesses have been asked to come forward.
Sergeant Ross Drummond, of Police Scotland’s Road Policing Unit, said: “We are working to establish the circumstances which led to this crash and would urge anyone who may have seen the incident or who has any other information to come forward.
“We would be keen to speak to other road users who were in the area at the time, particularly if they have dashcam footage.
“Anyone with information can call Police Scotland on 101, quoting incident 4290 of September 24.”