Delays and Maintenance on the Northern Line
“Passengers should anticipate longer journey times and delays at interchange stations,” a Transport for London (TfL) spokesperson stated amid ongoing issues affecting the northern line.
Severe delays have been reported on the northern line, primarily due to planned maintenance and technical issues. The Bank branch of the line has been experiencing early closures from Camden Town to Kennington since January 12, 2026, as part of essential track replacement work.
On the morning of March 12, 2026, a signal failure at East Finchley exacerbated the situation, leading to significant disruptions. Delays were particularly noted between High Barnet and Battersea Power Station, as well as between Mill Hill East and Kennington via Charing Cross.
TfL engineers are currently addressing the signal failure at East Finchley. In the meantime, passengers are advised to check before they travel and allow extra time for their journeys. TfL also recommends using its journey planner to check updated routes.
As a temporary measure, London Buses are accepting Tube tickets while engineers work to resolve the fault. Normal services have resumed on the Bakerloo, Jubilee, and Piccadilly lines, albeit with minor delays.
Details remain unconfirmed regarding the duration of the delays as repairs continue. Passengers are encouraged to stay informed about the latest updates from TfL.