The A414 London Colney roundabout. Picture: Danny Loo. (Image: Archant)
Mutiple vehicles have been involved in a crash on the A414 North Orbital Road.
The incident has taken place at the A1081 roundabout between St Albans and London Colney and there are delays.
East of England Ambulance Service was called at 3.47pm and sent an ambulance, which took one patient to Watford General Hospital for treatment.
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