Peterhead Academy is closed today due to a fault with the fire alarm system caused by a lightning strike.
There was hope that the fault could have been fixed yesterday but a completely new panel is now required.
A spokesperson for the Academy said: "A new panel will be fitted today but it would be unsafe to allow pupils and staff to be in the building while the fire alarm is not operational.
"We apologise for the inconvenience caused but safety of pupils and staff has to be our top priority.
"Pupils and staff should refer to school closure website and Peterhead Academy social media for updates."