There has been an accident on the M25 between St Albans and Potters Bar.
The crash has closed the hard shoulder and a lane on the clockwise side between junctions 21A and 22.
Traffic conditions are expected to return to normal by 8pm at the latest.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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