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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It will be a dry morning with some sunny spells. However, cloud will thicken from the west during the afternoon with rain arriving later.
Mostly dry start of the week, although rain arriving in the evening.