A fault on a train at Heathrow Terminal 5 means that fewer Heathrow Express services are able to run between London Paddington and Heathrow Airport.
Disruption is expected until the end of the day.
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.