The school was searched after the threat was called in at 9:39 a.m. and nothing was found, Monroe police told NBC.
The students were evacuated and taken to a neighboring school, NBC said.
Students from Sandy Hook School in Newtown have been attending classes in the former Chalk Hill School in Monroe since January 2013, weeks after a gunman killed 20 first-graders and six staff members during a rampage in their Newtown school building.
Read the full story here at NBC Connecticut.
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