Demolition work has started at 18 Victory Road in Derby, where the six children of Mick and Mairead Philpott died in a fire.
The house and a neighbouring property are due to be demolished over the next three weeks.
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Fog patches and extensive low cloud at first will steadily lift and clear.
A murky start with mist and fog then gradually clearing, although some eastern coastal districts may remain cloudier.
Isolated showers should die out through the evening to leave a dry remainder of the night.