Signalling problems at Berwick have been rectified.
Trains are now able to run between Edinburgh and Newcastle and onto Kings Cross but may be delayed by up to an hour.
More top news
Boris Johnson is on Teesside at Conyers School in Yarm. Our Political Editor Paul Brand is there
A study by the University of Oxford forecasts an increase of more than half a million foreign-born people in England between 2011 and 2014.
Paul Brand is joined by four new Parliamentary candidates for a lively debate on the economy and immigration. Watch the programme here: