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Two people are in hospital this morning after the car they were travelling in careered off a main road and into traffic lights.
Pictures taken at the scene in South Military Road at 11.30pm show a crumbled white Mercedes surrounded by emergency crews.
The A20 between the Western Docks and Aycliffe roundabouts remained fully closed until 2.30am and partially shut until about 7.30am.
The driver and a passenger were treated for injuries before being taken to a local hospital.
Police confirmed the Folkestonebound carriageway was closed due to a fuel spillage and to allow recovery of the vehicle.