Delays near Potters Bar (Image: PA Wire/Press Association Images)
There are long delays near Potters Bar because of an accident on the M25.
Traffic on the anticlockwise carriageway is crawling between Junction 26 and 21, following a collision near Watford, which has resulted in long delays near Potters Bar.
There is also congestion on the clockwise carriageway between Potters Bar and Enfield, Junction 24 and 25 respectively.
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