A total of 11 CFA crews responded to a fire at Rosebud Secondary College.
The fire was brought under control at 1:06PM and was contained to the school gym.
All staff and students are accounted for.
The incident is generating a large amount of smoke.
There are currently 11 CFA crews responding to the incident.
Ambulance Victoria and Victoria Police are also on scene.
CFA was first called at 12:28PM.
Boneo Road, Rosebud is currently closed both directions between the Mornington Peninsula Freeway and Eastbourne Road.