Among the victims were two brothers, Ellis and Elliot Thornton, aged 12 and 15. A third boy was named locally as Darnell Harte, who is thought to be 15. Two men aged 24 and 28 also died.
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Two 15 year-olds were arrested on suspicion of causing death by dangerous driving and remain in custody.
Police described being confronted by a scene of “complete carnage” when they reached the location of the collision involving a Renault Clio.
“Whether they were all in the car or whether some of the victims were pedestrians we can’t say at this point in time,” A police spokesperson said.
The families of the deceased have been informed.