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Signalling problems caused rail misery for Kent commuters this morning.
Southeastern services between Gravesend, Dartford and London were cancelled, delayed or rerouted until around noon as engineers worked to fix a fault at Lewisham.
The problem affected all trains running through the station.
Services have now returned to normal.
The delays came as Network Rail and Southeastern put in place a queuing system Cannon Street station during busy periods, amid a rebuild London Bridge as part of the ongoing Thameslink Programme.
The multi-billion pound scheme is due to be completed in 2018 and set to cost £12 million.
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