Engineering work is taking place between Brighton and Littlehampton, closing some lines from 23:00.
From 23:00 until the end of service on Monday to Thursday evenings, buses will replace trains between Brighton and Littlehampton.
Trains between London Victoria and Littlehampton will be diverted, running non-stop between Three Bridges and Littlehampton.
The following trains are affected further:
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.