Engineering work is taking place in the Cricklewood area, closing some lines connecting the Thameslink train depot with the railway.
As a result, after 23:15 on Saturday until the end of service, a reduced service will run between St Albans City and Sutton.
If you are travelling to / from stations north of London Blackfriars, you should use alternative Thameslink services to reach your destination.
If you are travelling to / from stations south of London Blackfriars, paper rail tickets will be accepted at no extra cost on London Buses to complete your journey.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner.
You can plan your journey on London Buses by using the Transport for London Journey Planner.