
A series of online threats against a North Texas high school prompts a closure for a second day.

Frisco ISD's Lone Star High School was the target of two threats posted to social media over the weekend. The warning urged families to keep their children home from school due to threats of violence.
Frisco police completed an extensive sweep of the campus Monday and the district said they did not find anything that posed a threat or was suspicious.
However, with more details still to be investigated, the school district said the campus will remain closed until at least Wednesday.
When classes do resume students will not be allowed to bring their backpacks for the week.
The school district and Frisco Police are investigating.
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