SULLY, IOWA (AP) -- Clean up is under way at a middle school in the central Iowa town of Sully after a thunderstorm damaged the roof on the gym.
KCCI-TV says the storm hit shortly before 1 p.m. on Tuesday during gym class and lunch. No one was hurt.
The National Weather Service says an air exchanger was ripped off the roof and about ¼ of the roof was peeled back. A section of the roof was tossed 50 to 100 feet from the building. A window was also blown out.
Lynnville-Sully School Superintendent Shane Ehresman says classes will be held as normal on Wednesday, but areas deemed unsafe will blocked off.
Sully is about 50 miles east of Des Moines.
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