(Image: Archant)
A broken down train is causing delays throughout Stevenage and North Herts, including Royston.
The northbound track became blocked this morning after a Great Northern train broke down near Barnet.
Trains are currently being diverted via Hertford North.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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