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Evening Standard
Evening Standard
National
Ross Lydall

What's wrong with the Northern Line? TfL says there's light at end of tunnel after days of Tube chaos

A full service could soon return to one of the busiest lines on the London Underground after its signalling system was hit by a mystery fault.

The Northern line has been blighted for days with signal failures near Stockwell station since Sunday that have meant far fewer trains than normal have been able to run on the line.

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