Hundreds of travellers are facing major delays on the East Coast main line after almost two miles of overhead power lines were pulled down by a train.
The incident involving the 11.15am service from Leeds to London occurred near Retford, south of Doncaster.
Services travelling to and from Edinburgh have been either diverted or cancelled this afternoon.
An East Coast spokesman predicted the main line would be affected for at least the rest of today.
The spokesman said: “We’re not able to operate trains in either direction through that section of the railway at the moment. Some of the trains are diesel, which principally for Scottish journeys are our trains that operate to and from Inverness and Aberdeen, and they are able to continue operating via a diversionary route that adds about 60 minutes to the journey time.”
The spokesman added: “All ticket restrictions have been lifted for the rest of the day. Diversionary routes are available either travelling via Sheffield into London St Pancras or by using the West Coast main line all the way from Scotland down via Carlisle with Virgin Trains. All of the diversionary routes are accepting East Coast tickets.”