Classes will go on as scheduled Tuesday at Weyauwega-Fremont Middle School despite a fire reported after school on Monday.
The Weyauwega Fire Department responded to an alarm just before 5 p.m. The school district says students and staff inside the school buildings were evacuated.
Superintendent Scott Bleck was on the scene when fire crews arrived.
Because of the heavy black smoke, more fire departments were called.
Weyauwega Fire Chief Tom Cullen says the fire was put out quickly, but it took hours to ventilate the entire building.
The fire department hasn't determined what started the fire.
Smoke damage was largely contained to two restrooms and a closet, Cullen said.