No evidence that Roanoke County School threat is credible

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ROANOKE COUNTY (WSLS10)-- Extra security measures are expected at William Byrd High School after a threat was discovered at the school on Thursday.

School spokesman, Chuck Lionberger, says there has been no evidence that the threat is credible.

Lionberger says the school day and activities will take place as scheduled, but there will be extra security measures in place.