Delays of up to 40 minutes on CrossCountry between Sheffield and Edinburgh Waverley 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 Grand Central, East Coast and First Transpennine
More top news
Actor Rodney Bewes has died aged 79. The star is best known for his role as Bob Ferris in Geordie sitcom The Likely Lads.
A look ahead at the forecast for the Tyne Tees region.
Ellie Knowles, 18, died last November after being at a Shindig event in Newcastle.