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A motorcyclist was injured after he came off of his bike near junction 1B on the A282, clockwise, near Dartford.
Police were called at 11.38am and paramedics treated the casualty at the scene before taking him to hospital.
The extent of his injuries is unknown, although they are not life threatening, police confirmed this afternoon.
Police said one lane was closed while the motorbike was recovered. No other vehicles were involved.