Motorists face long queues on the M25 between Swanley and Swanscombe following two crashes.
Heavy congestion is causing delays between junction 1a at Swanscombe and junction 3 at Swanley.
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The traffic jams are also affecting those trying to cross the Dartford Crossing.
The queues come following a crash between a car and a lorry at Clackett Lane Services in Sevenoaks just before 4pm today (November 23).
A second crash on the Essex-side of the Dartford Crossing is also causing congestion.
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