A teenage girl has died after being hit by two vehicles on the M8 near Edinburgh.
The 19-year-old was with a male friend walking along the eastbound carriageway, near Hermiston Gait retail park, when she was struck by a minibus.
The force of the impact threw her into the westbound carriageway where she was hit by an oncoming car.
Police have described the incident, which happened at about 2300 BST on Tuesday, as a "tragic accident".
Lothian and Borders Police said they were considering the possibility that other motorists may have hit the teenager.
She was hit by the minibus as she reached the point in the road where the M8 meets the Edinburgh city bypass
She died at the scene before the arrival of an ambulance crew.
The motorway was closed overnight by police between junctions 1 and 2 before reopening at 0600 BST on Wednesday.
Insp David Milne said: "An investigation is under way in order to establish the circumstances of this tragic incident, and we want to hear from anyone who has information that can assist our enquiries.
"We are appealing for anyone who was travelling eastbound or westbound on the M8 between Claylands and Hermiston Gait between 10.15pm and 11pm, who may have witnessed the collision or noticed any persons walking on or near to the M8, to come forward."
The force said it was also keen to speak to any pedestrians who may have been on the Gogar Station Road bridge over the M8, and saw the teenager from there.
Insp Milne added: "We are considering the possibility that other motorists may have hit the victim as they travelled west on the M8 at around 11pm, after the initial fatal collision.
"They may have been unaware of striking her at the time, but may now suspect otherwise. If so, we would also urge them to get in touch."