For the second day in a row, there are no trains running between St Albans Abbey and Watford.
This is due to mechanical problems which are likely to mean there will be no services for the rest of the day. It is not believed to have anything to do with the heat.
Tickets are being accepted on the Arriva 321 service.
For updates, keep checking hertsad.co.uk or search for #StAlbansAbbey on Twitter.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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