A fire underneath a major London, railway junction is causing travel, chaos this morning.<br /><br />The blaze broke out under lines, near London Bridge station, and has forced trains travelling, in and out of the busy hub, to grind to a halt.<br /><br />Footage posted on social media, showed a major emergency services response, in the Southwark area, and a thick column of smoke rising, over the capital.<br /><br />The fire broke out, in an archway building, on Union Street, directly underneath a large rail intersection.<br />
