Time-lapse video shows digging of Crossrail tunnels
New time-lapse footage has been released showing the progress being made below the capital on Crossrail.
More than five and a half miles of underground tunnels have now been dug.
These pictures show the work that is being carried out at the sites of Finsbury Circus and the new Liverpool Street Station.
The first Crossrail trains are due to run in 2018.
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