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A man has been taken to hospital after a crash involving a car and a lorry, which caused tailbacks on the M25.
Police were called to the collision on the anticlockwise carriageway at junction 5 for the M26 at about 5am.
The route was closed while ambulance teams and fire crews dealt with the incident near Sevenoaks.
A man was treated for a cut to his head and taken to hospital.
The carriageway fully reopened shortly after 7.30am.