Four people, including a baby girl, have died after a car crashed into trees in Derby, police have said.
Emergency services were called to reports that a car containing five people had left the A38 dual carriageway at about 11pm on Saturday.
Derbyshire Police said a 36-year-old man and two women, aged 18 and 30, were declared dead at the scene.
A baby girl was taken to hospital and pronounced dead a short while later.
All four were passengers in the vehicle and from Leeds, police said. Their relatives have been notified.
The driver, a 33-year-old man, was taken to hospital and treated for serious injuries. He has been arrested on suspicion of causing death by dangerous driving.
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The crash took place between the A50 Toyota Island and the A516. The A38 was closed for several hours after the incident but has since reopened.
Police have appealed for witnesses and anyone with dashcam footage that may have captured the crash is being asked to contact them.
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