Officers from the Metropolitan Police were in pursuit of a vehicle shortly after 2.30am this morning (April 25) along Hampstead Road.
During the chase, the vehicle was involved in a crash with a bus and lorry along the same road near to the corner with Drummond Street.
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The driver of the vehicle was arrested on suspicion of aggravated taking and driving away, and failure to stop for police.
He remains in custody, with the London Ambulance Service confirming they took two other people to hospital.
The crash resulted in the part closure of Hampstead Road until around 11.45am.