The London Underground station is on the Bakerloo line between Baker Street and Edgware Road stations and is, along with the main line station, in Transport for London fare zone 1. Access is via escalators from the main line station concourse which houses the Underground station's ticket office. Until 2004, a wooden escalator led into the station, one of the last on the London Underground system that had not been replaced as a consequence of the King's Cross fire in 1987.