The King's Cross fire killed 31 people in November 1987 when a lit match set fire to a wooden escalator. In the subsequent report London Underground was strongly criticised for its attitude to fires and its publication led to resignations of senior management in both London Underground and London Regional Transport and to the introduction of new fire safety regulations. A Fire Safety Code of Practice was drawn up for rolling stock and this led to internal refurbishment of the trains that included replacing the interior panelling and fitting or improving the public address systems.