There is a signalling fault in the Harlesden area, closing some lines at this station.
As a result of this, trains running between London Euston and Watford Junction may be cancelled, delayed by up to 15 minutes or revised.
This issue is expected to continue to impact services until 10:00.
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:
Some services will be revised to run directly between London Euston and Watford Junction.
If you are travelling to Harrow & Wealdstone or Bushey, you may use your ticket on London Overground services at no extra cost.
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.