Engineering work is taking place between Norwood Junction and Purley, closing some lines overnight from Monday evening until Thursday morning.
Between 23:15 and 05:30 each night, trains will be amended between Norwood Junction and Purley, with journey times extended by up to 5 minutes.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner
Although journey planners are showing correctly, your journey may be subject to alteration at short notice due to the Coronavirus outbreak. Please check before your journey.