Engineering work is taking place between Radlett and Kentish Town closing some lines until 09:00
The train service between St Albans and Sutton will not run.
Customers should use alternative Thameslink between St Albans and London Bridge and Southern trains between London Bridge and Sutton.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner
You can find the location of your bus replacement by checking station signs or by searching for your station on our station information pages