Engineering work is taking place in the Tulse Hill area, closing some lines on Tuesday to Friday mornings.
Between 00:20 and 04:50 each night, no Thameslink trains will run between London Blackfriars / Herne Hill and Sutton.
Paper rail tickets will be accepted at no extra cost on London Buses, London Trams and London Underground to complete your journey.
Please note that this work affects some trains running late on Monday to Thursday evenings.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner
You can plan your journey on London Buses / London Trams / London Underground by using the Transport for London Journey Planner