The fire has now been put out. Fire crews will remain on site damping down the blaze.
Around 70% of the building has been destroyed and electricity supplies have been cut off for safety purposes.
The cause of the fire is not yet known.
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A headteacher has payed tribute to a seven-year-old boy who was killed in a bus crash in Coventry at the weekend.
The family of the bus driver who was involved in Saturday's crash has said he is "devastated to the core" about what has happened.
Some heavy and perhaps thundery showers in places. Feeling warm and humid.