Engineering work is taking place in the Purley area, resulting in the closure of some lines.
Until 14:00 buses will replace trains between Redhill and East Croydon.
One train will run direct between Gatwick Airport and East Croydon every 90 minutes.
Tickets will be accepted on Metrolink bus route 100 and buses will operate between Gatwick Airport and East Grinstead, to connect with services into London.
Check before you travel:
These changes are not currently shown in the National Rail Enquiries Journey Planner, please check back nearer to the time of travel.
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 bus replacement by checking station signs or by searching for your station on our station information pages.