Delays of up to one hour on East Coast between Edinburgh Waverley and York due to earlier broken down train at Morpeth.
The southbound line has re-opened and trains can run through the affected area with delays and possible cancellations.
There is no estimate for a normal service. Also affecting CrossCountry.
More top news
A look ahead at the forecast for the Tyne Tees region.
The artwork of coalminers from the North East is being showcased at a new gallery in County Durham.
Laura Pidcock was among those to raise the issue at Prime Minister's Questions.