These images show the moment the air ambulance arrived at a four-car crash on the M25 in St Albans this morning.
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 including a black Audi A6, silver Nissan Kashqai, gold BMW 5 series and a white Toyota Starlet have now been recovered. The slip road is now open.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here