Engineering work is taking place between Arundel and Horsham, closing some lines.
As a result the 07:31 Bognor Regis to London Victoria service will divert via Hove and Haywards Heath, running to a revised timetable.
An additional service will run at 08:21 between Horsham and Three Bridges to connect with the train service.
A rail replacement bus service will run between Bognor Regis and Horsham.
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 and bicycle information, please use this page.
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, on occasion, replacement vehicles may be busier than usual, and you should allow extra time for your journey.