The fire is believed to have started in the boiler room and then spread to the roof.
All children were evacuated and are being sent home.
The Hampshire Fire Service has said
“All children and staff are safe and well.”
If anyone in Whitchurch area has children at the school, Andover Police have sent out the message:
“Children are now being sent home from The Winton School. Parents are asked to use the side entrance to collect their children.”
If travelling from Whitchurch to Andover, be aware that there are road closures and diversions in place.