Owing to signalling problems between London Kings Cross and Stevenage Northbound lines are affected.
Train services running to and from these stations may be delayed by up to 20 mins or diverted via Hertford North at short notice. Disruption is expected until 16:00 20/08.
East Coast would like to apologise for any delay to your journey.
To find out whether this will impact your journey and to get alternate options, please use our live journey planner below which provides real time travel information