Awful news but I think some of the pictures need to be taken with a pinch of salt. Reports have said most of the train went down an embankment, but some of those photos clearly show carriages on a train line, so it can't be both. But either way, its worrying and perhaps a saving grace that I expect the train wasn't hugely busy.
I don't live too far away and there was a considerable amount of rain this morning, definitely biblical!