These are the first pictures of work being carried out during a major project to upgrade the rail network in the East Midlands.
The five weeks of works include the closure of Nottingham station, the relaying of track and replacement of signals on the Robin Hood line to Mansfield.
These images show the state of Mansfield Junction today.
It's being reconfigured as part of the £100m railway regeneration, which aims to increase line speeds and improve train services through Nottinghamshire and the East Midlands.
More top news
Police investigating the death of music shop owner Tanveer Iqbal, have arrested two people on suspicion of murder.
35-year-old Michael Junior has pleaded guilty to causing the deaths of two young girls during a road crash in Handsworth in Birmingham.
The towns of Atherstone in Warwickshire and Ashbourne in Derbyshire are holding their annual 'ball games', a tradition dating back 800 years