Commuters are facing disruption on the A1 after a man fell off his moped.
Emergency services were called at 12.45pm today after a man, believed to be in his twenties, came off his white Piaggio moped at South Mimms.
The A1(M) northbound lane remains blocked on the exit slip road after the accident at J1 M25 and A1081.
An ambulance crew is still treating the man at the scene for minor head injuries.
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