STRONGSVILLE -- Graffiti sprayed on the front of Strongsville High School led to an evacuation of the building and cancellation of classes.
Police say the graffiti included the word "bomb."
Although authorities didn't believe there was any credible threat, school officials evacuated students and faculty to the stadium so investigators could sweep the building.
Ultimately, school officials closed all buildings -- except for the two middle schools.
The investigation is ongoing.