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There's to be a big investigation into why parts of London have ground to a halt in the wintry weather which has seen 20cm of snow in some areas.
The Transport Secretary says he needs to figure out what's gone wrong.
Most trains services are suffering and Gatwick Airport won't reopen until at least 6am tomorrow morning.
South East London, Surrey, Kent and Essex have been worse hit - more than 1000 schools are closed.