Thameslink (Image: Archant)
There is disruption between Luton and London St Pancras International this afternoon.
This is due to a defective section of track on the line near Hendon, meaning trains must not run faster than 20mph to avoid further damaging the track.
Train services on the line between Luton and London St Pancras International, which serves St Albans City and Harpenden, may be delayed by up to ten minutes or even cancelled.
The disruption is expected to last until 5.30pm.
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