Engineering work is taking place between Plumpton / Lewes and Seaford / Polegate, closing all lines.
All day on Sunday, no trains will run between Haywards Heath and Lewes / Seaford / Polegate / Eastbourne.
Rail replacement buses will run between Three Bridges / Haywards Heath and Lewes, between Lewes and Seaford, and also between Lewes and Polegate / Eastbourne.
Until 10:00, buses will replace trains between Brighton and Lewes.
Check before you travel:
You can plan your journey using the National Rail Journey Planner.
Replacement bus travel advice:
For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page.
You can find the pick-up and drop-off location of rail replacement services by checking station signage or by searching for your station on our Find a Station page.
Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.