Bradford County school officials confirmed that a large fight broke out Tuesday at Bradford High School.
Around "13" students were involved, and some of them have already been suspended, officials say.
"We have a Zero Tolerance policy for violence on campus," the district posted on Facebook.
The school said it was reviewing surveillance video, and that extra security measures were in place Wednesday.
Officials said that attendance appeared to be normal, but one woman who said she was a parent said on Facebook that she "will be keeping my stepdaughter home as a precaution."
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Over a dozen students involved in school fight in Bradford County
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