A young girl who died in unexplained circumstances in south London was a popular child who "was always giggling away about something".
A 33-year-old man has been arrested over the death of six-year-old Ellie Butler.
Ellie collapsed in her home in Sutton, south London, on Monday afternoon. Paramedics treated her at the scene but she was pronounced dead at hospital.
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The operation carried out by Westminster City Council led to the seizure of £8,000 worth of cigarettes.
Armed troops have been stationed around Parliament to free up armed police to patrol the streets in the wake of the Manchester bomb attack.
Chelsea had planned an open top bus tour to show off the Premier League trophy and hope to add the FA Cup in Saturday's final with Arsenal.