Engineering work is taking place in the Herne Hill area, closing various lines overnight from Monday evening to Friday morning.
To / from Sutton:
From 23:50 until the end of service each night, no Thameslink trains will operate between Herne Hill and Sutton. You can use your tickets on Southern trains, London Buses or on London Underground.
From Sevenoaks:
The 23:22 Sevenoaks to London Blackfriars service will be diverted to terminate at London Victoria, not calling at Elephant & Castle or London Blackfriars. You can use your tickets on London Underground.
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 Underground by using the Transport for London Journey Planner