Two fire crews have been called to Bury St Edmunds County Upper School after a fire started in a boys’ toilet block.
Crews from the town were called to the school shortly after 12.47pm today.
All children have been accounted for following the fire, which has now been extinguished.
Fire crews remain on the scene removing the building's ceiling.
Firefighters are treating it as suspected arson.
The school has been contacted for comment.
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