Engineering work is taking place between Angmering and Barnham, closing all lines.
Buses will replace trains between Littlehampton and Barnham / Bognor Regis / Chichester.
Trains will run between London / Brighton and Littlehampton.
Trains will also run between Chichester and Portsmouth Harbour. Journey times will be increased on replacement buses.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner
Replacement Bus Travel Advice:
For helpful advice if you need to travel on a rail replacement service, including accessibility information, please use our travel information pages.
You can find the location of your replacement bus by checking station signs or by searching for your station on our station information pages.
Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.