A points failure between London Euston and Watford Junction means that fewer trains are able to run on some lines.
As a result, trains between these stations may be cancelled, delayed by up to 25 minutes or revised.
Disruption is expected until 17:00.
Avanti West Coast customer advice:
If your train is cancelled, your ticket is valid on one of the two Avanti West Coast services immediately before your booked train, or one of the two immediately after.
London Northwestern Railway customer advice:
You may use your ticket at no extra cost on London Overground services between London Euston and Watford Junction.
Check before you travel:
You can check your journey using the National Rail Enquiries real-time Journey Planner.
Compensation:
You may be entitled to compensation if you experience a delay in completing your journey today. Please keep your train ticket and make a note of your journey, as both will be required to support any claim.