"Upon advice from Local Law enforcement. Today, Wednesday, June 1, 2022 The Waynesboro Area School District will be closed for students," the school said.
A "masked individual displaying a handgun posted a threat on social media advising that students should not go to school," Waynesboro Area police say.
The poster's account was determined to be fake though the account creator remain unknown, according to investigators.
The FBI is "assisting in determining the source of the malicious post," police say.
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