Engineering work is taking place in the London Bridge area, closing some lines.
A heavily reduced Thameslink service will run to / from / via London Bridge. Most trains will be diverted to run via Herne Hill, extending journey times.
Additionally, trains between Luton / London Blackfriars and Sutton via Wimbledon will be subject to extended journey times by a few minutes. The vast majority of trains between Luton / London Blackfriars and Sutton via Mitcham Junction will not run. For services via Mitcham Junction, you should use Southern services to / from London Victoria instead.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner