Asked why she spoke of her children as though they were still alive, Mairead Philpott replied: "My children are still alive to me".
She said she did not enjoy the enormous media attention following the house fire and she denied encouraging it.
Asked once more whether she had anything whatsoever to do with the deaths of her children, he replied "no".
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The prince laid a floral wreath at one of a group of metal crosses near Wellington Arch in central London.
The group, which also owns Premier Inn, said on Wednesday that it will pursue a ‘demerger of Costa’.
The showers will become more frequent as the day goes on, giving some heavy downpours in places during the afternoon.