The Grantham rail accident occurred on 19 September 1906. An evening Sleeping-Car and Mail train from London Kings Cross to Edinburgh Waverley hauled by Ivatt 'Atlantic' No 276 derailed, killing 14. The accident was never explained; the train ran through Grantham station, where it was scheduled to stop, and derailed on a set of points on a sharp curve at the end of the platform, which at the time had been set for a freight train. No reason was ever established as to why the train did not stop as scheduled, or obey the Caution and Danger signals.