Delays of up to 40 minutes on Grand Central Trains between York and Sunderland due to signalling problem at Thirsk.
Northbound lines have reopened and trains can run through the area with delays.
There is no estimate for a normal service.
Also affecting East Coast, First Transpennine Express and CrossCountry.
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Norwich have been promoted to the Premier League after a 2-0 victory against Middlesbrough at Wembley Stadium.
Mainly dry but rather cloudy to start this week. More unsettled by the end of the day Wednesday - stronger winds and showery rain
Many areas dry over the next few days with variable cloud and cooler airflow