Vaud police are asking for witnesses or any further information after a 27-year-old woman was killed on the A1 autoroute.
Police say the woman was walking on the road at 11.30 near Coppet on Monday night. She was struck by several cars.
The road remained closed until 10 o’clock yesterday morning, causing major rush hour delays.
Police are particularly interested in finding the driver of a large black sedan.
Anyone with any information is being asked to contact Vaud cantonal police.