There are delays of up to one hour on Virgin Trains East Coast between Edinburgh Waverley and Newcastle due to broken down train between Berwick-upon-Tweed and Alnmouth.
A recovery train is en route. Disruption is likely to continue until around 17:00.
National Rail says a broken down train near Prudhoe is causing delays of up to 60 minutes to trains between Newcastle and Carlisle.
The man responsible for keeping the Tyne and Wear Metro trains running on time has apologised for recent delays.
He says he has let passengers down and that the service is not as good as it needs to be.
Derek Proud reports.