At least 12 people have been confirmed dead after a tornado ripped through the south-central United States on Sunday, according to officials
Rescue operations are underway after the tornado wiped out entire neighborhoods of homes, officials say.
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Mary Ragoobeer and her sons, Shane and Sean, were killed in the blast in Leicester on February 25.
Wiltshire Council has warned work to remove toxic traces from nine hot spots around the city could take months.
Here are some answers to key questions on an impasse which threatens to derail the process.