A major overhaul to the escalators is taking place at London Kings Cross. This means the escalator between the mezzanine footbridge and platform 8 are out of order until 6 February.
There is still step-free access available between the station concourse and all platforms.
Major engineering work will be taking place in the Cambridge area. Latest information can be found in Status and Disruptions.
Trains running between Stevenage and London Kings Cross / London St Pancras International may be delayed by up to 60 minutes, cancelled or revised. Latest information can be found in Status and Disruptions.
Trains between York and Darlington / Middlesbrough may be delayed by up to 30 minutes or revised. Latest information can be found in Status and Disruptions.