Severe delays are being caused on the Victoria line today due to a signal failure.
There was reportedly no service running on the line between Walthamstow Central and Highbury and Islington stations at around noon today (Wednesday, November 30).
Problems are being caused by a signal failure at Seven Sisters. Issues are also causing minor delays on the rest of the line.
TfL has said tickets are being accepted on local buses, London Overground, Greater Anglia, Southeastern and South West Trains.
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