Oak Knoll Early Childhood Center | Photo: OKECC.

A preschool teacher was hosting an online class on Zoom when a disguised voice came over the meeting and threatened to bomb their school in Cary, police said.

The Cary Police Department and Cary Fire Department responded around 11:30 a.m. Monday to Oak Knoll Early Childhood Center, 409 North 1st Street, for a report of a bomb threat.

Cary Police Department Deputy Chief Scott Naydenoff said that a preschool teacher was hosting a virtual meeting via Zoom with students when a disguised voice was heard threatening to bomb the school.

The teacher immediately ended the Zoom meeting and school administration and parents were notified. Only a few people were physically present in the school building at the time of the threat, Naydenoff said.

A search of the school was conducted by school administration, police and firefighters, who confirmed there was no threat.

Naydenoff said that there is no concern of a security breach at the school building and the Cary Police Department Investigations Division is currently investigating the incident.

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No arrests or charges have been made.