The London Colney roundabout. Photo: Danny Loo (Image: Danny Loo Photography 2017)
Traffic lights are not functioning on the London Colney roundabout.
A tweet from Herts County Council said the lights on the A414 North Orbital Road were broken.
Drivers have been advised to proceed with caution.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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