Engineering work is taking place in the early morning between London Liverpool Street and Cheshunt, closing some lines.
Until 08:15, trains that usually run between London Liverpool Street and Cheshunt via Tottenham Hale will be diverted to run via Seven Sisters.
Stations on the Tottenham Hale line are only a short distance from those on the Seven Sisters line. You can view maps that show routes between these stations on the Greater Anglia website.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner