Engineering work is taking place between London Liverpool Street and Bethnal Green / Stratford, closing all lines.
Greater Anglia & Stansted Express:
Engineering work is taking place between Wembley and Milton Keynes Central, closing various lines on Friday evening.
Engineering work is taking place Ipswich and Bury St Edmunds / Norwich on Saturday and Sunday, closing all lines.
Buses will replace trains between Ipswich and Bury St Edmunds / Norwich all weekend.
Engineering work is taking place between Cambridge and Stansted Airport, closing all lines.
CrossCountry:
Buses will replace trains between Cambridge and Stansted Airport.
Overnight engineering work is taking place between Tilehurst
Engineering work is taking place Ipswich and Bury St Edmunds / Norwich on Saturday and Sunday, closing all lines.
Buses will replace trains between Ipswich and Bury St Edmunds / Norwich all weekend.
Engineering work is taking place between Slough and Reading, closing some lines overnight from Monday evening until Friday morning.
Engineering work is taking place between Broxbourne and Stansted Airport / Audley End until 09:10, closing all lines.
Engineering work is taking place between Hanborough and Oxford, closing all lines until 10:20.
Engineering work is taking place between Ascot and Ash Vale, closing all lines.
On Saturday and Sunday buses will replace trains between Ascot and Aldershot.