A fault on a train between Wivelsfield and Haywards Heath means trains running between these stations may be cancelled or delayed.
Disruption is expected until 14:45.
Customer Advice
We've recently been told about this incident, and we're working to get more information for you.
Your journey is likely to be disrupted, but we don't have an exact estimate for any delays at the moment.
You'll be able to see any further updates on this page, so please continue to check back here.
If you need to use another route, we'll let you know shortly.
Planning your journey:
You can see a live map of the network here. This will show where your journey is likely to be affected.
Can you tell me more about the incident?
At the moment, teams are working with local staff and colleagues at Network Rail to assess the situation.
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.