The resultant floods Catastrophe damaged Damaging infrastructure , mostly to road networks .

The resultant manhunt Scouring was described Statement by the Metropolitan police commissioner Sir Ian Blair as `` the greatest operational challenge Confronting_problem ever faced '' by the Met .

The resultant loss-of-coolant accidents led to Causation three nuclear meltdowns , three hydrogen explosions , and the release of radioactive contamination in Units 1 , 2 and 3 between 12 and 15 March .