St Albans Abbey Flyer trains are being cancelled this morning after the shuttle service developed a fault.
Commuters travelling between St Albans Abbey and Watford Junction will not be able to hop on a train until at least 8am.
The fault was first noticed at about 9.20pm yesterday (December 12) and Network Rail have been worked throughout the night to try and fix the problem.
Replacement bus services, operated by Nightliner and Radlett Radio Cars, are in place to help people on their morning travels.
This follows disruption on the same line yesterday evening, caused by staff shortages. That was resolved around 7.20pm.
To follow the incident on Twitter, use #StAlbansAbbey
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