No trains between St Albans Abbey and Watford Junction
PUBLISHED: 11:08 26 August 2018 | UPDATED: 11:08 26 August 2018
Rail replacement buses are in use between St Albans Abbey and Watford Junction.
This is because a member of staff has not come into work, so no trains can run between the two stations.
This disruption is expected to last until 1pm.
To follow the incident on Twitter, search for #StAlbansAbbey