Motorists will experience severe delays on the M25 this morning after a four car crash on a slip road.
Emergency services were called to the slip road of J22 A1081/B556 (St Albans/The Bell Roundabout/London Colney) at 7.40am.
The cars involved include a black Audi A6, silver Nissan Kashqai, gold BMW 5 series and a white Toyota starlet. Police are working to recover the vehicles and so far the Toyota and BMW have been recovered.
A woman was taken to Watford General Hospital with face injuries. The slip road remains closed.