The incident happened on Thursday 26 September, 2021.
A spokesperson for Nottinghamshire Fire and Rescue Service said:
‘We’ve seen lots of posts from you all and we know that for most Bramcote School holds some special memories.
These include our crews, many of whom attended the school before moving on to careers in the fire service.
‘Some of you may find these photos upsetting, but we wanted to show the aftermath of the fire.
‘You can see the damage caused and understand how hard crews from across the East Midlands worked to try and battle the blaze.
‘Specialist fire investigation officers are working hard with Nottinghamshire Police to understand this incident and determine the cause.
‘If you have information, any at all. Please ring 101 or contact crime stoppers, you don’t have to give you name. Any information, no matter how small could help us.’