Rail passengers in Chesterfield can expect delays after a person has been hit by a train.
East Midlands Trains said the person was struck by a train between Langley Mill and Nottingham at about 3pm.
As a result, there is disruption on the Nottingham/Sheffield/Liverpool route.
A spokesman for East Midlands Train said: “At present Network Rail and the emergency services are on their way to help open the line.
“All of our trains on the route cannot run on the normal route in either direction between Langley Mill and Nottingham.
“Where possible our trains will be diverted and may be delayed by 10 minutes.
“Where this diversion route is not possible, our trains may be diverted between Chesterfield and Nottingham [via Derby] and will not call at Alfreton, Langley Mill or Ilkeston.
“At present we are expecting the line to fully reopen in the next two to three hours. Our normal train service is expected to resume on the affected routes at around 6pm.”
Where trains have been diverted and have been unable to call at Alfreton, Langley Mill or Ilkeston, people will be provided with alternative road transport.
The spokesman added: “If you are at one of our unstaffed station please use the station help point to speak to us or call 03457 125678 option five and five.”