Engineering work is taking place in the Seven Sisters area, closing all lines.
Trains will divert via Tottenham Hale and Stratford to / from London Liverpool Street.
Journey times will be extended in both directions by up to ten minutes, and West Anglia services will depart London Liverpool Street up to ten minutes earlier than normal.
Stratford - Meridian Water service will not run.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner