Wantagh students have returned to classes after authorities evacuated the middle school and high school Thursday morning.
Superintendent Maureen Goldberg announced at 1 p.m. that an investigation by police had been completed and all students were returning to regularly scheduled classes.
After school and evening activities will go on as scheduled, Goldberg said.
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The evacuation was prompted by a "threatening message" that was discovered in a boys' bathroom at Wantagh High School, Goldberg said in a statement.
Nassau County Police confirmed that at 9:26 a.m., school district officials alerted them to the threat.
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Police said that they didn't believe the threat was credible but an evacuation was authorized as a precaution.
High school students and staff were sent to Forest Lake Elementary School. Middle school students and staff were evacuated to St. Francis Church.
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