Around 70 firefighters and 12 fire engines are the scene tackling the blaze after the fire erupted at 2.30pm local time.
It remains unclear what caused the fire but reports suggest lighting in the roof had caught alight.
One person was reportedly rushed to hospital for observations.
A spokesman said: “We have 12 fire crews on the scene with more on the way. We don’t know if anyone is trapped inside.”
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