Threats of a bomb scare resulted in Branham High School being evacuated Wednesday, which happened to alo be the 12th anniversary of the Columbine massacre.

According to reports, graffiti was found on campus on Tuesday, which indicated a bomb plot, and a voice mail was left with school saying that a bomb would detonate during lunch on Wednesday.

Using an emergency notification system, the school notified students and parents.

Police scanned the campus with bomb sniffing dogs and no bombs were found. Classes resumed as usual on Thursday.

Read More at NBC Bay Area.