None of the threats that have come in to Springfield to date have been legitimate,’ Ohio governor Mike DeWine said.

The move is in response to multiple schools in Springfield recently having to be evacuated following a series of bomb threats.

Ohio Gov. Mike DeWine said on Monday there have been “at least 33” bomb threats in Springfield and he announced troopers from the Ohio State Highway Patrol will be dispatched to 18 school buildings for the foreseeable future. During a news conference Tuesday, he encouraged parents it was OK to send their children back to school.