A social media post that threated a shooting at Hialeah Middle School was being investigated Friday, officials said.
The threat gave Friday's date and mentioned bringing an AK-47 to the school and gave a specific number of victims that would be targeted.
Miami-Dade County Public Schools officials said they're working to determine the source of the post.
"There is no reason, at this time, to believe the threat is credible; however, in an abundance of caution, there is extra police presence at the school," the district said in a statement. "Students are safe and continuing with their educational day."
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No other information was immediately known.
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