Damage to the overhead wires earlier today between London Euston and Watford Junction means some lines are blocked. To ease congestion in the area some Avanti West Coast services between London Euston and Manchester Piccadilly.
Disruption is expected until 09:00.
Customer advice:
You can use your ticket on London Northwestern Railway services between London Euston and Crewe 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.