PINELLAS COUNTY, Fla. --
UPDATE: Calvin A. Husinger has been cleared after a bomb threat was made; nothing was found.
It's still unclear who made the threat and why. The case is still under investigation.
Calvin A. Hunsinger School at 1863 N. Betty Lane in Clearwater was evacuated due to an unspecified threat.
The school was shut down around 9:40 a.m. as Clearwater Police conducted its sweep of the campus.
Stay with 10News for more from this developing story.